Synthesis of block copolymers by atom transfer radical polymerization of tert-butyl acrylate with poly(oxyethylene) macroinitiators

Authors
Bednarek, M Biedron, T Kubisa, P
Citation
M. Bednarek et al., Synthesis of block copolymers by atom transfer radical polymerization of tert-butyl acrylate with poly(oxyethylene) macroinitiators, MACRO RAPID, 20(2), 1999, pp. 59-65
Citations number
16
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
20
Issue
2
Year of publication
1999
Pages
59 - 65
Database
ISI
SICI code
1022-1336(199902)20:2<59:SOBCBA>2.0.ZU;2-A
Abstract
Poly(oxyethylene)s terminated at both ends with 2-bromopropionate end-group s were prepared and characterized by means of MALDI TOF mass spectrometry. It was shown, that atom transfer radical polymerization (ATRP) of methyl me thacrylate with a poly(oxyethylene) macroinitiator in bulk proceeds with lo w initiation efficiency while polymerization of tert-butyl acrylate proceed s with practically quantitative initiation, leading to ABA block copolymers . Originally formed tert-butyl acrylate blocks contain terminal bromine, as expected for the ATRP mechanism. MALDI TOF analysis indicates, however, th at in the later stages of polymerization side reactions lead to elimination of terminal bromine.