@article { ISI:000229066800041, title = {Functional copolymers of p-cumyl phenyl methacrylate and glycidyl methacrylate: synthesis, characterization, and reactivity ratios}, journal = {Journal Applied Polymer Science}, volume = {97}, number = {1}, year = {2005}, month = {JUL}, pages = {336-347}, publisher = {JOHN WILEY \& SONS INC}, type = {Article}, address = {111 RIVER ST, HOBOKEN, NJ 07030 USA}, abstract = {

Free-radical polymerization of p-cumyl phenyl methacrylate (CPMA) was performed in benzene using bezoyl peroxide as an initiator at 80\° C. The effect of time on the molecular weight was studied. Functional copolymers of CPMA and glycidyl methacrylate (GMA) with different feed ratios were synthesized by free-radical polymerization in methyl ethyl ketone at 70\° C, and they were characterized by FTIR and H-1-NMR spectroscopy. The molecular weights and polydispersity indexes of the polymers and copolymers were determined by gel permeation chromatography. The copolymer composition was determined by H-1-NMR. The glass-transition temperature of the polymer and the copolymers was determined by differential scanning calorimetry. The reactivity ratios of the monomers were determined by the Fineman-Ross and Kelen-Tudos methods. {\textcopyright} 2005 Wiley Periodicals, Inc.

}, keywords = {copolymerization, functionalization of polymers, glass-transition, synthesis}, issn = {0021-8995}, doi = {10.1002/app.21732}, author = {Ratnaprabha, K. and Daliya, P. K.} } @article { ISI:000245141300028, title = {Synthesis and characterization of hindered amine light stabilizers based on end functionalization of polypropylene}, journal = {Journal of Applied Polymer Science}, volume = {104}, number = {3}, year = {2007}, month = {MAY}, pages = {1596-1602}, publisher = {JOHN WILEY \& SONS INC}, type = {Article}, address = {111 RIVER ST, HOBOKEN, NJ 07030 USA}, abstract = {

A polymeric hindered amine light stabilizer (HALS), where HALS moiety was attached at the terminal end of the polypropylene chain via end-functionalized vinylidine PP through simple organic reactions, was synthesized. It comprises the synthesis of vinylidine-terminated polypropylene by using Cp2ZrCl2/MAO as catalyst system and epoxidation of vinylidene polypropylene. The final product was synthesized by carrying out the reaction between epoxy end functionalized polypropylene and 4-amino-2,2,6,6-tetrametyl piperidine. The final product was characterized by using H-1 NMR, C-13 NMR, and FT-IR spectra. Functionality was calculated by using vapor phase osmometry and H-1 NMR. The solubility and diffusion coefficient of the product were calculated and also its stabilization performance was checked. (c) 2007 Wiley Periodicals, Inc.

}, keywords = {end functionalization, functionalization of polymers, polymeric HALS, polypropylene, vinylidine and photostabilization}, issn = {0021-8995}, doi = {10.1002/app.25745}, author = {Reddy, K. Raghunatha and Kumar, Bijendra and Rana, Sravendra and Tevtia, Amit K. and Singh, R. P.} } @article { ISI:000287163600004, title = {Synthesis and drug-delivery behavior of chitosan-functionalized graphene oxide hybrid nanosheets}, journal = {Macromolecular Materials and Engineering}, volume = {296}, number = {2}, year = {2011}, month = {FEB}, pages = {131-140}, publisher = {WILEY-V C H VERLAG GMBH}, address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY}, abstract = {

Chitosan-functionalized graphene oxides (FGOCs) were successfully synthesized. FGOCs were found to significantly improve the solubility of the GO in aqueous acidic media. The presence of organic groups was confirmed by means of XPS and TGA. Restoration of the sp(2) carbon network and exfoliation of graphene sheets were confirmed by Raman spectroscopy, UV-visible spectroscopy and WAXD. The SEM and AFM investigations of the resultant FGOCs showed that most of the graphene sheets were individual and few were layered. Controlled release behavior of Ibuprofen and 5-fluorouracil was then investigated. We found that FGOCs are a promising new material for biological and medical applications.

}, keywords = {Biocompatibility, Chitosan, drug delivery systems, functionalization of polymers, solution properties}, issn = {1438-7492}, doi = {10.1002/mame.201000307}, author = {Rana, Vijay Kumar and Choi, Myeon-Cheon and Kong, Jin-Yeon and Kim, Gwang Yeon and Kim, Mi Ju and Kim, Sun-Hee and Mishra, Satyendra and Singh, Raj Pal and Ha, Chang-Sik} }