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Polymerization of dialdehydes by metal alkyls
Author(s) -
Sweeny W.
Publication year - 1963
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.1963.070070603
Subject(s) - polymerization , copolymer , metal , polymer chemistry , polyester , polymer , infrared spectroscopy , differential thermal analysis , materials science , aldehyde , diffraction , catalysis , chemistry , organic chemistry , physics , optics
A variety of metal alkyls have been found to be catalysts for preparing a polyester from terephthalaldehyde via the Tischenko reaction. The polymer was examined by infrared spectra, x‐ray diffraction patterns, and differential thermal analysis, and is apparently a crystallizable random 50 : 50 copolymer composed of p ‐methylenebenzoate and p ‐xylyleneterephthalate units. Diphenyl‐4,4,‐dicarboxaldehyde also underwent polymerization with the metal alkyls, but a hindered aldehyde, 4,6‐dimethylisophthalaldehyde, did not and was recovered quantitatively.