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Isothermal crystallization of copolyamides. I. Kinetics of crystallization of nylon 6–piperazine adipate and nylon 6–piperazine terephthalate random copolyamides
Author(s) -
Gogolewski S.,
Turska E.
Publication year - 1972
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.1972.070160810
Subject(s) - piperazine , comonomer , crystallization , adipate , materials science , nylon 6 , kinetics , polymer chemistry , condensation polymer , adipic acid , caprolactam , chemical engineering , copolymer , chemistry , polymer , organic chemistry , composite material , physics , quantum mechanics , engineering
The kinetics of primary crystallization from the melt of nylon 6–piperazine adipate and nylon 6–piperazine terephthalate copolyamides were measured dilatometrically. It was found that the crystallization rate of the samples under investigation decreases with increase in the percentage comonomer content and rigidity of molecules over the entire temperature range investigated. The Avrami exponent n varied with temperature, values being from 2 to 4.