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Iodine‐initiated, solid‐state copolymerization of tetraoxane with 1,3‐dioxolane in the presence of methylal. I. Fundamental study on beaker‐scale copolymerization
Author(s) -
Ishigaki Isao,
Watanabe Yuhei,
Morita Yosuke,
Takada Kiyoshi,
Ito Akihiko
Publication year - 1977
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.1977.070210312
Subject(s) - dioxolane , copolymer , iodine , polymer chemistry , materials science , thermal stability , solid state , polymerization , yield (engineering) , chemistry , organic chemistry , polymer , composite material , metallurgy
The iodine‐initiated, solid‐state copolymerization of tetraoxane with 1,3‐dioxolane in the presence of methylal has been studied on a beaker scale. It was found that tetraoxane can be easily copolymerized with 1,3‐dioxolane by a small amount of iodine as initiator and gives oxymethylene copolymer with excellent thermal stability in a high yield. The copolymerization was largely influenced by the concentrations of iodine, 1,3‐dioxolane, and methylal, i.e., the polymerization rate increased with increase not only in iodine but also in 1,3‐dioxolane, and the thermal stability and the molecular weight of the copolymer were mainly affected by 1,3‐dioxolane and methylal concentration, respectively.