Premium
The interaction of poly(methyl methacrylate) and chromium chloride: Transfer of methyl groups from the ester to the main chain
Author(s) -
Beer Rudolfo Scott,
Wilkie Charles A.,
Mittleman Martin L.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070460618
Subject(s) - methyl methacrylate , monomer , poly(methyl methacrylate) , methylene , polymer chemistry , chemistry , polymer , halide , metal halides , chloride , carbon monoxide , chromium , organic chemistry , catalysis
The interaction of transition‐metal halides with poly(methyl methacrylate) (PMMA) has been studied in the past and methyl halides are always observed as a product of the reaction. When CrCl 3 is used as an additive for PMMA, only traces of methyl‐containing products are seen and these only at quite high temperatures. The principal volatile products consist of carbon dioxide, carbon monoxide, and monomer, while the nonvolatile residue contains a multitude of methylene and methine carbons. A mechanism is invoked by which the ester methyl is transferred to the polymer backbone in a concerted process.