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Microwave Accelerated Polymerization of 2‐Phenyl‐5,6‐dihydro‐4 H ‐1,3‐oxazine: Kinetics and Influence of End‐Groups on Glass Transition Temperature
Author(s) -
Sinnwell Sebastian,
Ritter Helmut
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200600231
Subject(s) - polymerization , kinetics , glass transition , polymer chemistry , chemistry , ring opening polymerization , iodide , irradiation , microwave irradiation , ring (chemistry) , photochemistry , catalysis , organic chemistry , polymer , physics , quantum mechanics , nuclear physics
Summary: The ring‐opening polymerizations of 2‐phenyl‐5,6‐dihydro‐4 H ‐1,3‐oxazine (PhOZI) with methyl tosylate (MeOTs) and butyl iodide (BuI) as initiators were performed in refluxing butyronitrile. Reaction kinetics under microwave irradiation was compared with conventional oil bath heating. The polymerization rates, under microwave irradiation, showed an acceleration by a factor of 1.8 (independently from the used initiator). The investigation of the thermal properties of the obtained poly( N ‐benzoyl‐trimethyleneimine) showed the influence of molecular weight and end‐groups on the glass transition temperature.The ring‐opening polymerizations of 2‐phenyl‐5,6‐dihydro‐4 H ‐1,3‐oxazine performed in refluxing butyronitrile.