Preparation of Comb-like Block Polymer Hydroxy-capped Poly(ethylene glycol)methacrylate with High Density via Atom Transfer Radical Polymerization

Abstract

Abstract: A novel hydroxy-capped comb-like block polymer, poly[poly(ethylene glycol)](HCPEG), was prepared via atom transfer radical polymerization(ATRP) of α-methylacryloyl-ω-hydroxyl-poly(ethylene glycol). The polymerization kinetics of the PHPEGMA was studied by gel permeation chromatography and ¹H NMR. The semilogarithmic plot of monomer conversion vs. reaction time increases linearly before the conversion is up to more than 70% and the number-average molecular weights(M_n) by GPC increased linearly with increase of the monomer conversion up to 100%, while the polydispersity index remained fairly narrow with M_w/M_n<1.2.

Key words: Atom transfer radical polymerization(ATRP), α-Methylacryloyl-ω-hydroxyl-poly(ethylene glycol), Comb-like polymer

CLC Number:

O631

TrendMD:

LI Xiao-Lin, JI Jian, SHEN Jia-Cong. Preparation of Comb-like Block Polymer Hydroxy-capped Poly(ethylene glycol)methacrylate with High Density via Atom Transfer Radical Polymerization[J]. Chem. J. Chinese Universities, 2005, 26(2): 388.

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Preparation of Comb-like Block Polymer Hydroxy-capped Poly(ethylene glycol)methacrylate with High Density via Atom Transfer Radical Polymerization

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