One-Pot Versatile Synthesis of Branched-Multiblock Copolymers Based on Polylactide and Poly(ε-caprolactone)

Yue Chang, Zhize Chen, Yiqi Yang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


To generate a scalable and economical approach for preparing tough poly(l-lactide) (PLLA) materials, a series of branched multiblock poly(ε-caprolactone)/poly(l-lactide) (BLCL) was synthesized using 3-isocyanatopropyltriethoxysilane (IPTS) as a coupling agent. Triblock poly(l-lactide)-b-poly(ε-caprolactone)-b-poly(l-lactide)s (HO-LCL-OH) were synthesized by ring-opening polymerization of l-lactide using polycaprolactone diol as macroinitiator. The branched copolymers, BLCL, were then synthesized with IPTS as a chain extender. The effects of IPTS/HO-LCL-OH ratio on the thermoplasticity and tensile properties were investigated. The copolymers obtained were fabricated into films by hot press molding. The branched multiblock copolymers exhibited good thermoplasticity and remarkable toughness. Using this facile synthetic technique, various diol soft segments might be introduced into PLLA chain to prepare ductile PLLA material.

Original languageEnglish (US)
Pages (from-to)242-249
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Issue number1
StatePublished - Jan 10 2018

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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