Photo-crosslinked poly(ε-caprolactone fumarate) networks: Roles of crystallinity and crosslinking density in determining mechanical properties

Shanfeng Wang, Michael J. Yaszemski, James A. Gruetzmacher, Lichun Lu

Research output: Contribution to journalArticle

78 Scopus citations

Abstract

We present a material design strategy of combining crystallinity and crosslinking to control the mechanical properties of polymeric biomaterials. Three polycaprolactone fumarates (PCLF530, PCLF1250, and PCLF2000) synthesized from the precursor polycaprolactone (PCL) diols with nominal molecular weights of 530, 1250, and 2000 g mol-1, respectively, were employed to fabricate polymer networks via photo-crosslinking process. Five different amounts of photo-crosslinking initiator were applied during fabrication in order to understand the role of photoinitiator in modulating the crosslinking characteristics and physical properties of PCLF networks. Thermal properties such as glass transition temperature (Tg), melting temperature (Tm), and degradation temperature (Td) of photo-crosslinked PCLFs were examined and correlated with their rheological and mechanical properties.

Original languageEnglish (US)
Pages (from-to)5692-5699
Number of pages8
JournalPolymer
Volume49
Issue number26
DOIs
StatePublished - Dec 8 2008

Keywords

  • Mechanical properties
  • Photo-crosslinking
  • Polycaprolactone fumarate

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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