Polymers of carbonic acid, 28. SnOct2-initiated polymerizations of trimethylene carbonate (TMC, 1,3-dioxanone-2)
β Scribed by Hans R. Kricheldorf; Andrea Stricker
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 127 KB
- Volume
- 201
- Category
- Article
- ISSN
- 1022-1352
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## Abstract The purity and reactivity of trimethylene carbonate (TMC, 1,3βdioxanβ2βone) depends largely on the purification procedure. Vacuum distillation and recrystallization from CCl~4~ are less efficient than recrystallization from tetrahydrofuran (THF) or ethyl acetate (EtAc). TMC recrystalliz
Cyclobis(diethy1ene glycol carbonate), (DEGC),, was synthesized by polycondensation of diethylene glycol with diethyl carbonate followed by thermal depolymerization of the crude polycarbonate in vacuo. BuSnCl,-initiated polymerizations of (DEGC)2 in chlorobenzene at 100 "C gave poor results. Therefo