CARBOXY-TERMINATED HOMOPOLYMERS AND COPOLYMERS OF STYRENE USING DICARBOXYLIC-ACID FUNCTIONAL AZO INITIATOR AND 2,2,6,6-TETRAMETHYL-1-PIPERIDYLOXYL (TEMPO)

Authors
BAUMERT M MULHAUPT R
Citation
M. Baumert et R. Mulhaupt, CARBOXY-TERMINATED HOMOPOLYMERS AND COPOLYMERS OF STYRENE USING DICARBOXYLIC-ACID FUNCTIONAL AZO INITIATOR AND 2,2,6,6-TETRAMETHYL-1-PIPERIDYLOXYL (TEMPO), Macromolecular rapid communications, 18(9), 1997, pp. 787-794
Citations number
30
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
18
Issue
9
Year of publication
1997
Pages
787 - 794
Database
ISI
SICI code
1022-1336(1997)18:9<787:CHACOS>2.0.ZU;2-Z
Abstract
Carboxy-terminated polystyrene, poly(styrene-co-acrylonitrile), and po lystyrene block-poly(styrene-co-acrylonitrile) with ratios of weight-t o number-average molar masses (M) over bar(W)/(M) over bar(n) below 1. 3 were synthesized via a controlled radical polymerization mechanism. The polymerizations were initiated viith 4,4'-azobis(4-cyanopentane-ca rboxylic acid) and 2,2,6,6-tetramethyl-1-piperidyloxyl radical and con ducted in bulk at elevated temperatures. The polymerization was monito red by nuclear magnetic resonance, size-exclusion chromatography, end- group titration and differential scanning calorimetry.