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Polyaddition of diols to a bifunctional allene: a new synthetic method for polyacetals
Author(s) -
Sato Eiichi,
Yokozawa Tsutomu,
Takata Toshikazu,
Endo Takeshi
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19990901)200:9<2160::aid-macp2160>3.0.co;2-w
Subject(s) - chemistry , allene , bifunctional , polymerization , context (archaeology) , monomer , yield (engineering) , organic chemistry , acetal , acrolein , polymer chemistry , polymer , catalysis , materials science , paleontology , metallurgy , biology
The polyaddition of diols to 1,4‐bis(allenyloxy)xylene ( 3 ) as a new synthetic method for polyacetals is described. Bis(alkoxyallene)s react with diols 4 in the presence of p‐ toluenesulfonic acid at –10°C to yield polyacetals with vinyl groups at the acetal carbon. This polymerization involves no equilibrium process between polymer and monomer, being different from the previous methods the preparation of polyacetals. The polyacetals are readily hydrolyzed to give the corresponding diols and acrolein quantitatively.