Effect of ester side chains on the aggregation state and surface properties of poly(dialkylfumarate)s

Sung Boo Choi, Atsushi Takahara, Naoyuki Amaya, Yoshishige Murata, Tisato Kajiyama

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The aggregation state and surface properties of poly(dialkylfumarate)s (PDAFs) with various alkyl ester groups have been studied by X-ray diffraction, dynamic viscoelastic measurements, contact angle analysis, and X-ray photoelectron spectroscopy (XPS). PDAFs in the rigid rod-like molecular structure showed the mechanical α-absorption behavior in a temperature range above 450 K, which was attributed to the glassy-rubbery phase transition. The β-absorption behavior was apparently dependent on the bulkiness of the ester side chain. The intermolecular distance of rigid rod like molecules increased with the number of carbon atoms in the bulky ester group. The angular dependent XPS and contact angle measurements revealed that the polymers have low surface free energy due to the orientation of hydrophobic alkyl chains around the core composed of backbone chain.

Original languageEnglish
Pages (from-to)215-219
Number of pages5
JournalPolymer Journal
Volume21
Issue number3
DOIs
Publication statusPublished - Mar 1989

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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