STUDIES ON THE BLOCK COPOLYMERIZATION OF D,L-LACTIDE AND POLY(ETHYLENE GLYCOL) WITH ALUMINUM COMPLEX CATALYST

Authors
DENG XM XIONG CD CHENG LM HUANG HH XU RP
Citation
Xm. Deng et al., STUDIES ON THE BLOCK COPOLYMERIZATION OF D,L-LACTIDE AND POLY(ETHYLENE GLYCOL) WITH ALUMINUM COMPLEX CATALYST, Journal of applied polymer science, 55(8), 1995, pp. 1193-1196
Citations number
7
Categorie Soggetti
Polymer Sciences
Journal title
Journal of applied polymer science → ACNP
ISSN journal
00218995
Volume
55
Issue
8
Year of publication
1995
Pages
1193 - 1196
Database
ISI
SICI code
0021-8995(1995)55:8<1193:SOTBCO>2.0.ZU;2-#
Abstract
A series of block copolymers from D,L-lactide and poly(ethylene glycol ) (PEG) with different molecular weights were synthesized by using Al( i-Bu)(3)-H3PO4-H2O as the initiator and identified by H-1-NMR, GPC, an d DSC. The elongation at break of the material increased when PEG was introduced, but the strength of the material decreased. The copolymers degrade more smoothly in vitro than did the PLA homopolymer. (C) 1995 John Wiley and Sons, Inc.