graft copolymer


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graft copolymer

[¦graft kō′päl·ə·mər]
(organic chemistry)
Any high polymer composed of two or more different polymeric entities chemically united.
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However, the thermodynamic incompatibility between PB and PS causes the system to separate into two phases: a continuous, rubber-rich phase and a dispersed, PS-rich phase [6, 7], The reaction then proceeds with the generation of free PS, and graft copolymer (GC).
Experimental and Theoretical Study of the Use of Multifunctional Initiators in the High Impact Polystyrene Bulk Process
After completing the reaction, a small amount of graft copolymer was poured into Petri dish and dried the samples in oven at 40[degrees]C for 48 h.
Some studies on the preparation and characterization of natural rubber grafted poly (methyl methacrylate), polystyrene and poly (styrene-co-methyl methacrylate)
A graft copolymer is a system comprised of a backbone material to which a second polymer is attached at intervals along the chain.
Grafting of Cellulose Extracted from Kenaf Using Xanthate Method
Kollicoat IR, an ethylene glycol and vinyl alcohol graft copolymer, is BASF s highly versatile and safe-in-use instant release coating polymer.
Germany,United States : BASF and Colorcon Cooperate on Kollicoat IR for Ready-to-Use Pharmaceutical Coating Solutions
Presentations will include: "Studying and Assessing Human Pigmentation," Nikiforos Kollias, University of British Columbia (formerly of Johnson & Johnson); "An Aspect of the Progression of Skin Photoaging-The Concerted Reaction of Keratinocytes, Fibroblasts, and Neutrophils," Hitoshi Masaki, Tokyo University of Technology, Japan; "A Sunscreen for the World--A Universal Challenge in Sunscreen Development," John Staton, Dermatest, Australia; "Photostability and Photoprotection: Today and in the Future," Craig Bonda, HallStar; "Formulating Sun Protection Products with a Novel Hydrogel Graft Copolymer," Kishore Shah, Polytherapeutics, Inc.
NYSCC to hold sun exposure symposium on Oct. 15
1 to 5 mass percent of an acrylic graft copolymer having a poly(methyl methacrylate-methacrylic acid) backbone and polyethylene glycol side chains; approximately 0.
Troy patents water-based antimicrobial
The material is an impact-modified graft copolymer with notched Izod impact strength of 2.
Toughened nylon 6 for large thin-wall parts
Finally, it can be suggested that the synergetic effects caused by dilution of styrene with methanol or ethanol and the addition of acids can be used to reduce monomer consumption as well as processing doses in a way that would improve the economy of the grafting process and the mechanical properties of the graft copolymer.
Effect of liquid additives on graft copolymerization of styrene onto perirradiated poly(ethylene-co-tetrafluoroethylene) films
A graft copolymer contains 30-90% by weight of olefinically unsaturated monomer.
Hot Melt Adhesives Based On Graft Copolymers: No. 7,166,341; Marcus Heemann, Thomas Moeller, Ingo Gensch and Wolfgang Klingberg, assignors to Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA), Duesseldorf, Germany
7) Selected block and graft copolymer structures are shown in Scheme 1.
Not your same old polymers: same monomers, new polymers
Table-1 shows the dependence of the amount activity and stability of immobilized trypsin from the molecular weight of PVPr, the nature of the metal ion and the mass (%) of PVPr in graft copolymer composition which is obtained by reacting VPr with AG from the cherry gum.
Hydrogels for Immobilization of Trypsine Based on Poly-N-vinylpyrrolidone and Arabinogalactan Graft Copolymers
Influences of MMA concentration of the graft copolymer on properties of PB are shown in Table 3.
Particleboard from Para rubber wood bonded with natural rubber-g-Methyl (methacrylate)

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