Synthesis of polyethylene/polyester copolymers through main chain exchange reactions via olefin metathesis

Takeshi Maeda, Shigehisa Kamimura, Tomoyuki Ohishi, Atsushi Takahara, Hideyuki Otsuka

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The synthesis and characterization of linear polyethylene/polyester copolymers produced by olefin cross metathesis and subsequent catalytic hydrogenation are described. The success of the scrambling reaction between 1,4-polybutadiene and unsaturated polyester via olefin cross metathesis was confirmed by 1H NMR. Differential scanning calorimetric (DSC) measurements indicated that the size of the copolymer blocks varied gradually with the exchange ratio. Catalytic hydrogenation of the unsaturated copolymers with different exchange ratios was carried out using Pd-Al2O3. The crystallinity of the resulting hydrogenated polymers depended on the exchange ratios achieved during olefin cross metathesis. This suggests that the unique sequential structure imparted to the unsaturated polymers during metathesis was retained during the hydrogenation process.

Original languageEnglish
Pages (from-to)6245-6251
Number of pages7
Journalpolymer
Volume55
Issue number24
DOIs
Publication statusPublished - Nov 18 2014

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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