Mono- and bifunctional six-membered cyclic carbonates synthesized by diphenyl carbonate toward networked polycarbonate films

Hiroyuki Matsukizono, Takeshi Endo

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The synthesis of six-membered cyclic carbonates from diols utilizing less toxic and easily-handled diphenyl carbonate (DPC) is carried out based on the reactivity and selectivity at different conditions. Commercially-available neopentylglycol (NPG) or di(trimethylolproapane) (DTMP) react effectively with DPC at 140°C and converted to their corresponding monofunctional NPG-carbonate (NPGC) or bifunctional DTMPC-carboante (DTMPC), respectively. The selectivity of these carbonates changes depending on a feed ratio of DPC and these diols. After a NPG/DPC mixture with the DPC/NPG feed ratio of 4 was heated at 140°C for 48 h, the NPGC is isolated with a yield of 74%. A 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-catalyzed ring-opening polymerization (ROP) of NPGC with DTMPC can form effectively networked structures. By only drying of THF solutions containing NPGC, DTMPC, and a catalytic amount of DBU at 60°C for 12 h, the ROP efficiently proceeds and networked polycarbonate films with well transparency and flexibility are easily obtained.

Original languageEnglish
JournalJournal of Applied Polymer Science
Volume132
Issue number19
DOIs
Publication statusPublished - May 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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