Precise synthesis of poly(α-methylene-γ-butyrolactone) and evaluation of its characteristics

Masanao Sato, Xinyue Zheno, Tomoyasu Hirai, Atsushi Takahara

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1 Citation (Scopus)

Abstract

α-methylene-γ-butyrolactonc (MBL) is a polymerizable monomer obtained from tulips with similar structure to methyl methacrylate (MMA). So far, the preparation of PMBL with well-controlled molecular weight, polydispersity index and stereoregularity has not been achieved. Here we report the preparation of well-controlled PMBL by living anionic polymerization. Well-controlled PMBL could not be obtained via homopolymerization of MBL due to the poor solubility of PMBL in common organic solvents, which resulted in a heterogeneous system. Using amide-based solvents, a homogeneous reaction occurred. However, it is difficult to control the living anionic polymerization of MBL in such solvents because of the high reactivity of MBL. Well-controlled PMBL was successfully achieved when the reaction was initiated using a macro-initiator selected to improve the solubility of PMBL segments in common organic solvents. On the basis of this reaction system, we demonstrate that a block copolymer with well-controlled stereoregularity and high degree of polymerization could be synthesized that showed microphase separation.

Original languageJapanese
Pages (from-to)447-452
Number of pages6
JournalKOBUNSHI RONBUNSHU
Volume72
Issue number7
DOIs
Publication statusPublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

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