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The reactions of stabilizers prior to the appearance of degradation in vinyl
Author(s) -
Grossman Richard F.
Publication year - 1997
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.10157
Subject(s) - degree of unsaturation , allylic rearrangement , stabilizer (aeronautics) , degradation (telecommunications) , chlorine , catalysis , primary (astronomy) , activation energy , chemistry , photochemistry , materials science , polymer chemistry , organic chemistry , physics , mechanical engineering , telecommunications , astronomy , computer science , engineering
The infrared spectra of simple allylic chlorides dissolved in a variety of primary stabilizers indicate a shift in the CC stretching frequency to higher energy. This suggests that in the presence of primary stabillizers, allylic unsaturation has less of an activating effect on chlorine. The initial effect of stabillizer addition, therefore, may be simply to increase the activation energy of degradation, and the first function of the vinyl stabilizer, that of a reverse catalyst of the degradative process.