Electronic Resource
New York
:
Wiley-Blackwell
Journal of Polymer Science Part A-1: Polymer Chemistry
7 (1969), S. 265-268
ISSN:
0449-296X
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The rate of tri-o-tolyphosphine-initiated photopolymerization of methyl methacrylate was found to be significantly higher than that for the triphenylphosphine initiated polymerization. The mechanism was shown to be dependent upon the concentration of the initiator. At low concentrations (10-4 mole/l.), an activated complex is the initiating species, while at higher concentrations (above 10-2 mole/l.) homolytic cleavage of the phosphorus-carbon bond is the radical source. Steric inhibition of resonance is advanced as an explanation for the enhanced activity of tri-o-tolylphosphine over triphenylphosphine.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1969.150070123
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