Tailored graft copolymers

CONTROL OF POLYMER SURFACE STRUCTURE BY TAILORED GRAFT COPOLYMERS... 

Thus, it is evident that while synthesizing a graft copolymer, one can, according to the requirement, tailor-make the graft copolymer for a particular use or a combination of different uses. 

Preparation of block and graft copolymers in various applications is interesting if we consider the limited availability of new polymers. For the synthesis of tailor-... 

The purpose of this review is to show how anionic polymerization techniques have successfully contributed to the synthesis of a great variety of tailor-made polymer species Homopolymers of controlled molecular weight, co-functional polymers including macromonomers, cyclic macromolecules, star-shaped polymers and model networks, block copolymers and graft copolymers. 

Other Examples of Tailor-Made Graft Copolymers. 107... 

Bonding of hydrophobic plastic materials to wood to create new wood-plastic (polystyrene) materials with improved mechanical and physical properties that incorporate the desirable features of each constituent is difficult to achieve. This is due to poor interfacial adhesion between the wood and polystyrene components because of their inherent incompatibility. New, well-defined, tailored cellulose-polystyrene graft copolymers have recently been prepared using anionic polymerization techniques. Preliminary bonding studies showed that these graft copolymers can function effectively as compatibi-lizers or interfacial agents to bond hydrophobic plastic (polystyrene) material to wood, evolving into a new class of composites. 

Synthesis of Tailor Made Cellulose-Polystyrene Graft Copolymers... 

Results from characterization of the constitution of the synthesized graft copolymers, compiled in Table 1, illustrate the versatility of the synthetic strategy outlined in the reaction scheme (Scheme 15) for the preparation and characterization of tailored graft copolyelectrolytes. 

A comparison of the slloxane graft copolymers with random copolymers makes the former more attractive not only because of the possibility of synthesizing such tailor-made graft copolymers by the use of easily accessible slloxane macromers, but also because of the durability of surface modification characteristics Imparted by them. 

Synthesis of single type graft copolymers, in which additional active ester groups on the polymer backbone enable the introduction of other structural units (A) for tailoring the overall structure of the graft copolymer (22 in Fig, 18). 

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