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Crystallization and melting of copolymers of polyoxymethylene
Author(s) -
Inoue Masakazu
Publication year - 1964
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.1964.070080519
Subject(s) - polyoxymethylene , crystallization , copolymer , trioxane , materials science , nucleation , polymer chemistry , chemical engineering , epichlorohydrin , chemistry , composite material , organic chemistry , polymer , engineering
Copolymers of polyoxymethylene were prepared from trioxane in the presence of comonomers such as dioxolane, 1,3‐dioxane, dioxepane and epichlorohydrin, boron trifluoride etherate being used as catalyst. Fusion and crystallization phenomena were studied on these copolymers by use of density measurement, differential thermal analysis, dilatometry, and microscopy. The spherulite growth rate and the induction periode of the crystallization were determined. The temperature dependence of the growth rate was calculated assuming a two‐dimensional surface nucleation mechanism.