Influence of stereochemistry on cocrystallization in partially cycloaliphatic copolyamides

C.E. Koning, B. Vanhaecht, R. Willem, M. Biesemans, B. Goderis, B. Rimez

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The aim of this work is to investigate whether or not both the cis and the trans isomers of either 1,4-cyclohexanedicarboxylic acid (1,4-CHDA) and 1,4-diaminocyclohexane (1,4-DACH) are participating in the formation of cryst. domains in copolyamides based thereon. Two isomeric series of partially cycloaliph. copolyamides were synthesized. In the series based on polyamide 12.6, the adipic acid residues were partially replaced by cis/trans mixts. of 1,4-CHDA, and in the series based on polyamide 4.14, the 1,4-diaminobutane residues were partially replaced by cis/trans mixts. of 1,4-DACH. By submitting these series of copolyamides to careful DSC and WAXS analyses, it could unambiguously be concluded that only the trans isomers of both 1,4-CHDA and 1,4-DACH residues are cocrystg. with the adipic acid based residues. Such evidence was not yet available in literature.
Original languageEnglish
Title of host publicationAbstracts of Papers, 225th ACS National Meeting
Place of PublicationNew Orleans, LA, United States
PublisherAmerican Chemical Society
PagesPOLY-073
Publication statusPublished - 2003
Event225th ACS National Meeting - New Orleans, United States
Duration: 23 Mar 200327 Mar 2003

Conference

Conference225th ACS National Meeting
CountryUnited States
CityNew Orleans
Period23/03/0327/03/03

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