Applications of Graft Polymers

The simple Alexander—de Gennes theory, which assumed a steplike monomer density in the brush, captured the dependence of the interaction on the physical parameters (length of the polymer, density of grafting, quality of the solvent) and provided a satisfactory approximation for the calculation of the steric repulsion. However, new applications of grafted polymers on surfaces, such as the control of the catalytic selectivities of some chemical reactions by varying the thickness of a brush,4 the prevention of the adsorption of proteins on surfaces (a condition required for biocompatibility),5 or the control of... 

For chromatographic sorbents it is necessary that the polymeric cover be uniformly distributed over the silica surface and chemically coupled to it. The appropriate introduction of the initiator is one of the decisive steps of this task. The first method (binding to the surface) increases the yield of grafted polymer. However in this case a large amount of homopolymer is formed. This disadvantage could be prevented by the application of hydroperoxide initiators in combination with the proper redox-agents [78-81],... 

Wenz, E. Buchholz, V. Eichenauer, H. etal. Process for the Production of Graft Polymers US Patent Application Publication 2003/0130433 Al Assigned to Bayer Polymers LLC Filed in 2002. Priority Number DE 10153534.1 (2001). 

The trick, of course, is to find a chemical compound that can be reacted readily with the carbohydrate polymer to give the desired reactive moities along the backbone of the carbohydrate polymer. Here, the adhesives chemist will have to borrow from and extend the work that has been and is now being done on the formation of modified starches 62), cellulosics (48-51,63,64), and textiles. Professor Narayan of Purdue University illustrates the potential adhesive applications of grafted cellulosic polymers in Chapter 24. 

S. Machi, Y. Matsui, A. Sugishita, T. Sugou, H. Taniguchi, K. Asano and H. Fujiwara, Preparation method of graft polymers having fluorocarbon polymer backbone. Jpn. Pat. JP 57-18530 (examined application). 

This review introduces the method of active ester mtheris, and discusses its application to the preparation of a variety erf specialty polymers, including amphiphilic gels, graft copolymers, and side chain reactive and liquid crystalline polymers. The polymerization and copolymerization of activated acrylates by solution and suspension techniques are discussed, and polymer properties such as comonomer distribution, molecular weights, C-NMR spectra and gel morphology are reviewed. Potential applications of these polymers are also highlighted, and the versatility of active ester synthesis as a new dimension of creativity in macromolecular chemistry is emphasized. 

Segura and group prepared protein-targeted cationic polymers by ATRP using the grafting from approach. The application of grafting from and grafting to approaches to prepare biomolecular chimeras by LRP has... 

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