Issue 2, 2023

Polypentenamer thermoplastic elastomers via copolymerization of cyclopentene and dicyclopentadiene

Abstract

Dicyclopentadiene (DCPD) monomer was incorporated at various levels into statistical copolymerizations with cyclopentene (CP) to determine its influence on the resulting copolymers. We characterized the thermal, viscoelastic, mechanical, and morphological changes upon adding DCPD and determined its strengthening mechanism. DCPD units formed branching points along the polymer that phase separated into glassy domains. These glassy nanodomains acted as physical crosslinks providing strength to the uncured network. Increases in copolymer elastic modulus and viscosity were proportional to DCPD content, and thermoplastic elastomer (TPE) mechanical behavior was observed with high levels of DCPD incorporation. This work demonstrates that DCPD copolymerization can be used to predictably increase the uncured strength of polypentenamers and at higher loading levels could find use as a TPE.

Graphical abstract: Polypentenamer thermoplastic elastomers via copolymerization of cyclopentene and dicyclopentadiene

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Article information

Article type
Paper
Submitted
08 Jūn. 2023
Accepted
19 Jūl. 2023
First published
09 Aug. 2023
This article is Open Access
Creative Commons BY-NC license

RSC Appl. Polym., 2023,1, 281-291

Polypentenamer thermoplastic elastomers via copolymerization of cyclopentene and dicyclopentadiene

D. W. Weller, R. Halbach, A. V. Zabula, S. J. Mattler, X. Gu and C. R. López-Barrón, RSC Appl. Polym., 2023, 1, 281 DOI: 10.1039/D3LP00076A

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