Paper Title:
Synthesis of Novel Amphiphilic Block Copolymers of Poly-N-vinylpyrrolidone and Poly (D, L-lactide) by Atom Transfer Radical Polymerization
  Abstract

In order to improve the hydrophilicity of poly (D,L-latide) (PDLLA), a novel amphiphilic ABA-type triblock copolymers of poly-N-vinylpyrrolidone (A) and poly (D, L-lactide) (B), were successfully synthesized by atom transfer radical polymerization (ATRP) using N-vinylpyrrolidone (VP) as monomer, bromide-terminated poly (D,L-latide) oligomer (Br-PDLLA-Br) as functional macromolecular initiator which was prepared when hydroxy-terminated poly(D,L-latide) oligomer (HO-PDLLA-OH) reacted with 2-bromopropanoyl bromide, CuBr/2,2’-bipyridine complex as the catalyst system. The resulting copolymers were characterized by various analytical techniques. The results showed that the introduction of poly (N-vinylpyrrolidone) (PVP) segments into polylactide enhanced the surface hydrophilicity of the copolymers remarkably and amphiphilic polymer can self-assemble into core-shell structure (polymer micelle) in water by the balance of the hydrophilic and hydrophobic interaction.

  Info
Periodical
Advanced Materials Research (Volumes 11-12)
Main Theme
Edited by
Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
Pages
461-464
DOI
10.4028/www.scientific.net/AMR.11-12.461
Citation
S. X. Shi, J. Liu, Y. Z. Xia, S. K. Jiao, X. Y. Li, "Synthesis of Novel Amphiphilic Block Copolymers of Poly-N-vinylpyrrolidone and Poly (D, L-lactide) by Atom Transfer Radical Polymerization", Advanced Materials Research, Vols. 11-12, pp. 461-464, 2006
Online since
February 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Wang, Yuan Yuan Dou, Mei Shan Pei, Xin De Tang
Abstract:Biocompatible and biodegradable synthetic materials have attracted considerable attention during the past two decades. In this work, a series...
1057
Authors: Hao Zhou, Qing Hong Liang, Xiang Ke Shi, Li Hua Lu, Li Qun Zhang, Dong Mei Yue
Chapter 1: Materials Properties
Abstract:Amphiphilic diblock copolymers based on methoxy polyethylene glycol (MePEG), 1, 6-hexanediol and maleic anhydride with different molar...
11
Authors: Ke Xin Kang, Min Ying Liu, Qing Xiang Zhao, Peng Fu, Xiao Bing Wang
High Performance Elastomers & Polymers
Abstract:A series of amphiphilic block copolymers mPEO-b-PCL with different PCL molecular weight were successfully prepared by combination of...
1877
Authors: Dan Li, Chun Ju He
Chapter 1: Materials and Technologies of Chemical Industry
Abstract:The hydrophilic modification of poly (vinylidene fluoride) (PVDF) membrane is achieved by using amphiphilic copolymer poly (2-hydroxyethyl...
16