₦airaland Forum

Magnetic dendritic heavy metal removal agent has excellent performance.
Magnetic particles prepared by dendrimers have good magnetic response and suspension property, base material of magnetic particles have complete crystalline structure which could offer more active end groups. This is helpful to increase combination of magnetic dendritic heavy metal removal agent and protein, it can be widely used in material science, medical, biology etc. Its good performance shown in following: 1. High removal efficiency compared with traditional material. 2. Reusability. 3. Concentrated heavy metals, improve its reusability and recycling ratio. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Magnetic dendritic heavy metal removal agent has excellent performance.
Heavy metal ions can be adsorbed and encapsulated by dendrimers with lots of hydroxyl groups, includes Ag+, Cu2+, Zn2+, Fe2+, thus dendrimers or dendritic polymer products can be used to remove heavy metal ions. Magnetic particles and amino terminated particles have good removal ability of heavy metals, if modified by dendrimer, the treat effect will be more excellent. Magnetic water treatment agents with different generations can be adjusted according to pH of various systems. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Dendrimer varnish composition shows great performance in Automobile painting.
Automobile varnish should be material with better visuality, in order to protect environment, the material is expected to have low VOC, i.e high solid content. But with high content, viscosity of material will be increased to lead worse visuality. Dendrimner can be used as a new kind of hyper functionality adhesive of varnish to prepare painting with high solid content and good appearance. Polyester with low hydroxyl functionality will get soft and thin film, while high ones get hard and thin film. Varnish composition with dendrimer has good properties and solid content is higher than the current material (50%). Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Excellent properties of dendrimer in Nano metal ions.
Preparation of size and shape controllable metal clusters is a challenge to Nanomaterial Science.
Dispersed and fine dendritic polymers are used as templates, size, stability, solubility of nano particles are controllable. So dendrimers are appropriate temperate for Nano metal particles due to void space and surface groups. Dendrimers are used as templates and sodium borohydride are used as reducer to react with samarium, particles with average size 4.7 nm±0.5 nm and uniform distribution can be obtained. Generations of dendrimers decide its possibility in reaction as templates, high generation dendrimers are more suitable to be used as template and stabilizer. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Magnetic dendritic heavy metal removal agent has excellent performance.
Heavy metal ions can be adsorbed and encapsulated by dendrimers with lots of hydroxyl groups, includes Ag+, Cu2+, Zn2+, Fe2+, thus dendrimers or dendritic polymer products can be used to remove heavy metal ions. Magnetic particles and amino terminated particles have good removal ability of heavy metals, if modified by dendrimer, the treat effect will be more excellent. Magnetic water treatment agents with different generations can be adjusted according to pH of various systems. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Effect of novel hyperbranched polyester on PVC mechanical and rheological properties.Hyperbranched polyester can effectively improve the processing fluidity of PVC:
(1) Tensile properties of hyperbranched polyester modified PVC is sensitive to the processing temperature , at 170 ℃ open mill temperatures, hyperbranched polyester/PVC tensile properties reaches maximum; (2) Compared with the traditional processing agent ACR, adding hyperbranched polyester substantially does not affect the mechanical properties, but hyperbranched polyester has large advantage in the processing temperature to reduce plasticizing temperature of PVC; (3) Adding hyperbranched polyesters in PVC also can significantly reduce the viscosity of PVC, and the increasing amount of hyperbranched polyester is good for PVC processing. Weihai CY Dendrimer Technology Co. Ltd forwards from "The Effect of Hyperbranched Polyester on Mechanical and Rheological Properties of Rigid PVC" Wang Guojian, Wang Changming, Li Yan, Tongji University, Plastics 2006 Volume 35, Issue 6 15-19

Hyperbranched polymers can greatly improve shear strength and adhesion of epoxy and polyurethane adhesives. Highly branched polymer PAMAMs (HPBs) becomes a new kind thermosetting adhesive and related adhesion promoter, interfacial adhesion and durability have been significantly increased (100-250%) after modifying, while at lower concentrations it can effect best, it has wide applications and can be used as a binder for variety of plastic and metal. Weihai CY Dendrimer Technology Co. Ltd forwards from ”Novel adhesion promoters based on hyper-branched polymers “ H. DODIUK-KENIG 1 , A. BUCHMAN 3,∗and S. KENIG 1Shenkar College of Enginnering and Design, Department of Plastics Engineering, Ramat-Gan, Israel Israel Plastics and Rubber Center, Mitchel Building, Shenkar College, Israel 3 Rafael, Department 27, P. O. Box 2250, Haifa 31021, Israel Composite Interfaces, Vol. 00, No. 0, pp. 1 - 17 (2004)

PAMAM dendrimer modified silica particles has great application value in water purification.
Silica particles modified by pamam can effectively adsorb anionic dyes and surfactant in the water, in particular C18G1S showed the highest binding affinity to the anionic surfactant. The adsorption isothermal studies indicated that adsorption of surfactants on C18GnS was due to the assistance of hydrophobic interaction between the aliphatic peripherals on the dendron and the
alkyl tail on the surfactant. The anionic targets adsorbed on the surface modified silica particles can be released at alkaline condition because of the deprotonation of PAMAM dendron, which suggests the convenient recovery and reuse process. Counting in the cost efficiency and environmental low load, as-prepared amphiphilic dendron-modified silica is a promising solid phase adsorbent for water purification. Weihai CY Dendrimer Technology Co. Ltd forwards from “Solid-Phase Synthesis of Amphiphilic Dendron-Surface-Modified Silica Particles and Their Application Toward Water Purification”Chih-Chien Chu,† Norio Ueno,‡ and Toyoko Imae*,† Graduate School of Science and Technology, Keio UniVersity, Hiyoshi, Kohuku-ku, Yokohama 223-8522, Japan, and Material Science Research Center, Shiseido Co. Ltd., Hayabuchi, Tsuzuki-Ku, Yokohama 224-8558, Japan ReceiVed August 24, 2007. ReVised Manuscript ReceiVed December 7, 2007

Modified hyperbranched polyester has promising application in paint film,coating field.
After using caprolactone and lauric acid to modify hyperbranched polyester, the film properties in gloss, impact resistance, adhesion and flexibility is very excellent. Caprolactone and lauric acid-modifiedhyperbranched polyester has the best performance, lowest viscosity of 7500 mPa • s, the coating is dry in 40 minutes, and the hardness is F. Seperately using caprolactone or lauric acid modifiedHBP-1 and HBP-2, the corresponding data are 7 × 105 mPa • s, 20 minutes, HB, and 17500mPa • of s, 90 minutes and 2B. In addition, coating with lauric acid and benzoic acid-modified hyperbranched polyester in adhesion, hardness and is greatly improved, and increasing the amount of benzoic acid can improve the pendulum hardness. Weihai CY Dendrimer Technology Co.,Ltd forwards from Yong Wang, Yanan Zhu, Qu Jniqing Polymer Materials Science and Engineering, 2013, 3 (29):14-21; And Chemical Industry and Engineering (1.South China University of Chemistry and Chemical Engineering, 2. Garbo Li Chemical Industry Group Co., Ltd.)

Modified hyperbranched polyesters can be used as excellent antioxidant.
Phenolic modified hyperbranched polyester antioxidant of the liquid compound squalane is much higher than the commonly used business antioxidant in the antiaging performance. Such modified antioxidant isn’t suitable to solid-state system, but is very suitable for the liquid anti-aging stabilizer system, such as oils, lubricants and so on.

Dendrimers can be widely used in target detection and cancer treatment.
Gold Nanoparticles under visible light irradiation has heating characteristics,with PAMAM encapsulating after irradiated with light has a strong cytotoxicity, and can be widely applied in the field of detection and tumor therapy. PAMAM with PEG-grafted polymer has height controllability on molecular weight, good biocompatibility, encapsulating capacity of gold nanoparticles, gold nanoparticles in the growth of its internal norms, and therefore can be used as ideal carrier for gold nanoparticles.Weihai CY Dendrimer Technology Co.,Ltd forwards from "PEG-Attached PAMAM Dendrimers Encapsulating Gold Nanoparticles:Growing Gold Nanoparticles in the Dendrimers for Improvement of Their Photothermal Properties"Yasuhito Umeda, Chie Kojima, Atsushi Harada, Hiromichi Horinaka, and Kenji Kono Osaka Prefecture University Bioconjugate Chem. 2010, 21, 1559–1564

PAMAM can be used as excellent drug carrier of vivo transport and metabolism.
Serum albumin is the most abundant protein in the plasma, plays an important role of acidity remains,storage and carrying of amino acids, fatty acids and drugs.Reaction research of PAMAM Dendrimers and Bovine Serum Albumin is important to clarify the PAMAM as a drug carrier transporter distribution and metabolism in the body . Specifically as follows: (1) end with G4.0 and G3.0 PAMAM dendrimer of the amino group is primarily through electrostatic interactions to combine with BSA (bovine serum albumin).G3.5 PAMAM with ester end group with BSA may by hydrogen bonding, hydrophobic interactions and van der Waals forces and other forces.(2)dendrimer with amino end group interact with BSA much stronger than ester end group.Meanwhile, with the increase of the number of terminal amino group and the Generation,the binding enhanced.(3) using emission fluorescence, the synchronous fluorescence and Rees to study PAMAM and BSA's mechanism of action, the peak shape changes of the fluorescence spectrum identifies putting PAMAM could change conformation of BSA,tryptophan residues around the base of the environment has become more hydrophobic and in the movement limited environment. Weihai CY Dendrimer Technology Co.,Ltd forwards from "Different PAMAM Dendrimers with Bovine Serum Albumin" Huaijing Zhang,Hua He ,Shanshan Li,Jinrong Lu, Chuong, Pham Huy analysis of China Pharmaceutical University, Department of Chemistry, Nanjing 210009, China Chimica Sinica 2010 68 17 1741 to 1748

Dendrimer can effectively remove and recycle lead ions in the different soil.
Dendrimer can effectively remove lead carbonate ions, the recovery rate is about 95%; lead ion removal efficiency is approximately 96% and recovery is up to 94%. Weihai CY Dendrimer Technology Co.,Ltd forwards from “Removal of Lead from Contaminated Soils Using Poly(amidoamine) Dendrimers”Yinhui Xu and Dongye Zhao*EnVironmental Engineering Program, Department of CiVil Engineering, 238 Harbert Engineering Center,Auburn UniVersity, Auburn, Alabama 36849

Effective application of dendrimers in the field of ultra-low pressure reverse osmosis membrane.
Dendrimer-based ultra-low pressure reverse osmosis membrane can effectively retain a variety of salts, such as sodium sulfate, sodium chloride, magnesium sulfate, retention rate reaches 92%, in particular sodium sulphate, up to 98%. The membrane has high flux, and low operating pressure. Water flux can reach 30-40 L • M-2 • h - 1, operating pressure was 0.6MPa. The film has good resistance to chlorine, acid and alkali resistance is little weaker. In addition, the membrane has excellent separation performance for PEG-200, showing its promising application in separation small organic molecules from the water. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers

Carboxyl terminated dendrimer based aluminum tanning agent without chrome.
As people’s awareness of environmental protection, negative effects of chrome tanning can’t be ignored any more, therefore, the production of little chrome, no chrome tanning agents is more important for industry. Carboxyl terminated dendritic tanning agents overcome aluminum tanning agent disadvantages that not washable, low shrinkage temperature, and have great retanning effect, is a new kind of multi-tanning agent. Dendritic polymers have hyperbranched structures and lots of end groups, can form crosslinks with aluminum and dermomyotome with retanning effect, increasing thick rate was increased by 25.10% than ordinary aluminum tanning agent. While the leather tear strength was improved 12.69% and tensile strength 11.28%, and the specific performance of tanning agents can effectively disperse the fiber bundle, so that leather surface was full soft. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Effective application of dendritic polymers in protective substrates.
In order to prevent metal pipe, pipe connections and pipelines from corroding, mechanical damage caused by friction or degradation due to exposure to the sun, soil, moisture etc, protective coating can be coated. Dendrimer based curable compound is particularly good at providing anti-cathode degumming performance, thus protecting the pipes. When it’s not cured, provides excellent adhesion to substrates. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Application of dendritic demulsifer in oil field.
Dendrimer based new demulsifer has good surface properties and infiltrability, it can quickly reach oil-water interface to replace active substances to form new film; due to special structure of dendritic polymers, molecules of the newly formed films are difficult to approach each other, and weaken Waals forces to lower film strength and promote separation of water and oil. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Dendritic acrylic polyurethane nanocomposite has good performance in coating application.
Mechanical properties, water resistance, solvent resistance of nanocomposite is not ideal due to small functionality of the preparation material conventional linear acrylic polyurethane. Dendritic polymer was used to prepare high functionality acrylic polyurethane systems, obtained acrylic polyurethane/inorganic nanocomposite with high performance, the adhesion reached 0 class, which was enhanced 4 classes than conventional systems, the hardness improved from 2B to 4H, and flexibility was greatly increased, meanwhile, the dendrimer based coating has double bond.
Dosage of inorganic oxide was 1% -5%, added 1 wt% photoinitiator named Runtecure 1103, mixed 15 min without light, coated on glass, dried at 50 ℃ in vacuo, and irradiated with UV light to obtain films. The new film has following properties: gloss, adhesion, hardness, anti-stoning, flexibility, weather resistance, solvent resistance, chemical resistance. Weihai CY Dendrimer Technology Co.,

Hyperbranched polyester modified epoxy resin has excellent performances.
Hyperbranched polymer has low viscosity, high functionality, no chain entanglement and good solubility characteristics, provides a new way for epoxy toughening. Modifying the hydroxyl-terminated hyperbranched polyester (AHBP) obtained hyperbranched polyester with carboxyl end group (CHBP), not only has the toughening effect, but also play the role of a curing agent. Using CHBP as flexibilizer and curing agent, study its toughing effect on epoxy/MTHPA (EP/MeTHPA) curing system; CHBP molecular terminal all with carboxyl has the best toughening effect, impact strength achieves 18.5 kJ/m2; when the carboxyl terminal content reaches 40%, the impact strength of the epoxy resin is only 7.8 kJ/m, CHBP has no toughening effect at this time. When CHBP mass fraction is 15%, tensile strength achieves the maximum , 64.86 Mpa; when CHBP mass fraction is 15%, the Tg of the resulting cured epoxy resin is 106 ℃, increased about 6 ℃. Weihai CY Dendrimer Technology Co. Ltd forwards from "Study on carboxyl - terminated hyperbranched polyester modif ied epoxy resin curing systems" Wang Xiaoke, Tian Mi (Chongqing University of Science and Technology, Chongqing 401331) Thermosetting Resin, 2008,3 (23) , 25-28

The effective application of dendrimers in the biomedical field.
Dendrimers modified contrast agent has a certain degree of biological activity, and its strength of folate receptors is improved, enhanced the expression intensity of magnetic resonance imaging, faster and more accurate detection of various types of cancer include: ovary, uterus endometrial cancer and breast cancer. Besides, dendritic porphyrin has bionic features, such as the reversible binding of oxygen (bionic hemoglobin). Due to good solubility in water of dendrimer, it can transport in the body to improve the content of oxygen in the body, could benefit critically ill patient. Weihai CY Dendrimer Technology Co., Ltd forwards from “Applications of dendrimers, in Bio-Organic Chemistry ". Yoonkyung Kim and Steven C Zimmerman University of Illinois Current Opinion in Chemical Biology 1998, 2:733-742

High catalytic performance and high recycling rate of PAMAM catalyst.
Pd nano-size is 1.56+/-0.67nm in catalyst SiO2@Pd-PAMAM, so it has a superior performance in the hydrogenation reaction as catalyst. It can effectively catalyze olefins, alkynes, ketones, nitro etc in hydrogenation reaction with a conversion rate of 100%, and 100% selectivity, compared with the traditional Pa catalyst, the catalytic performance is doubled. In addition ,SiO2@ Pd-PAMAM catalyst can be repeated using five times to maintain the original catalytic efficiency, almost no exudation of Pd and mingled with reactants, and traditional Pa catalyst cycled three times will lose its catalytic properties. Weihai CY Dendrimer Technology Co., Ltd forwards from "SilicaDendrimer CoreShell Microspheres with Encapsulated Ultrasmall Palladium Nanoparticles: Efficient and Easily Recyclable Heterogeneous Nanocatalysts" Ankush V. Biradar, Archana A. Biradar, and Tewodros Asefa Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States

PAMAM can be used to make self-healing coatings.
G0 generation PAMAM can react with diisocyanate to make polyurea micro-spherical shell, and the linseed oil coated by polyurea microspheres through emulsification compounds with polyurethane substrate to get coating with self-healing properties. Such coatings can improve its thermal stability up to
380 °C. Polyurea microspheres with a large number of amino group can improve its adhesion performance with polyurethane coating or substrate. The polyurea microspheres based on PAMAM embedded in the polyurethane coatings to coat on the surface of the steel material, its antiseptic properties will be improved with the content increase of polyurea microspheres in the polyurethane coatings, the general content is between 2-5%. When the content is 5%, it shows the best corrosion resistance, even rupturing 120h will still have a good self-healing properties. Weihai CY Dendrimer Technology Co., Ltd forwards from“Novel Polyurea Microcapsules Using Dendritic the Functional Monomer: Synthesis, characterization, and its use in self-healing and anticorrosive Polyurethane Coatings ". Pyus D. Tatiya, Rahul K Hedaoo Pramod P. Mahulikar, and Vikas V. Gite Department of Polymer Chemistry, School of Chemical Sciences, North Maharashtra University, Jalgaon, Maharashtra, India-425 001.

Carboxyl terminated dendrimer based aluminum tanning agent without chrome.
As people’s awareness of environmental protection, negative effects of chrome tanning can’t be ignored any more, therefore, the production of little chrome, no chrome tanning agents is more important for industry. Carboxyl terminated dendritic tanning agents overcome aluminum tanning agent disadvantages that not washable, low shrinkage temperature, and have great retanning effect, is a new kind of multi-tanning agent. Dendritic polymers have hyperbranched structures and lots of end groups, can form crosslinks with aluminum and dermomyotome with retanning effect, increasing thick rate was increased by 25.10% than ordinary aluminum tanning agent. While the leather tear strength was improved 12.69% and tensile strength 11.28%, and the specific performance of tanning agents can effectively disperse the fiber bundle, so that leather surface was full soft. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Effective application of dendrimers in the field of ultra-low pressure reverse osmosis membrane.
Dendrimer-based ultra-low pressure reverse osmosis membrane can effectively retain a variety of salts, such as sodium sulfate, sodium chloride, magnesium sulfate, retention rate reaches 92%, in particular sodium sulphate, up to 98%. The membrane has high flux, and low operating pressure. Water flux can reach 30-40 L • M-2 • h - 1, operating pressure was 0.6MPa. The film has good resistance to chlorine, acid and alkali resistance is little weaker. In addition, the membrane has excellent separation performance for PEG-200, showing its promising application in separation small organic molecules from the water. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Effective application of dendritic polymers in protective substrates.
In order to prevent metal pipe, pipe connections and pipelines from corroding, mechanical damage caused by friction or degradation due to exposure to the sun, soil, moisture etc, protective coating can be coated. Dendrimer based curable compound is particularly good at providing anti-cathode degumming performance, thus protecting the pipes. When it’s not cured, provides excellent adhesion to substrates. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Application of dendritic demulsifer in oil field.
Dendrimer based new demulsifer has good surface properties and infiltrability, it can quickly reach oil-water interface to replace active substances to form new film; due to special structure of dendritic polymers, molecules of the newly formed films are difficult to approach each other, and weaken Waals forces to lower film strength and promote separation of water and oil. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Effective application of dendritic polymers in protective substrates
In order to prevent metal pipe, pipe connections and pipelines from corroding, mechanical damage caused by friction or degradation due to exposure to the sun, soil, moisture etc, protective coating can be coated. Dendrimer based curable compound is particularly good at providing anti-cathode degumming performance, thus protecting the pipes. When it’s not cured, provides excellent adhesion to substrates. Weihai CY Dendrimer Technology Co., Ltd.-Professional Manufacturer for low cost dendritic polymers. -The newest 4th class polymers.

Superior performance of dendrimers based pesticide composition.
Dendrimer-based pesticide composition is a amphipathic substance (hydrophilic group and a hydrophobic group), the composition is in the form of concentrate, when being diluted with water, it forms small particles (micelles). Compared to the previous compositions, the insecticidal properties of the composition has been significantly improved, as in the control of pests, bioavailability, and other soil mobility, the composition can control the pests. Thus, pesticide compositions can be combined with one or more of the active ingredient, or different compound, to improve bioavailability of pesticides or pesticide formulations, reduce metabolism, reduce toxicity, increased chemical or photochemical stability, increase soil mobility.Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers.

Dendrimer-based resin molded products have broad application prospects.
Dendrimers have promising application in touch panel of household electrical appliances, or mobile phones, game consoles, sound recorders, laptop computers and other machines operating department and other various resin molded products, in particular, relates to a resin molding material and the surface protection film-integrated insert molding resin. Now in the market, film surface is curved or angled which is easy to crack. In order to prevent cracking, approach used to improve flexibility will lead to lower hardness, intolerant abrasions. Dendritic polymer resin molding is to provide a product with sufficient surface hardness, and the film insert molding integrally without cracking occurs and have excellent in appearance. As the special cavity structure and functional group of dendrimer,it may be used to provide a film insert molding, i.e. in the molding there’s no cracking or bleaching, is excellent in scratch resistance of the surface.Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers.