Synthesis and microphase separation of biodegradable poly(ε- caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) multiblock copolymer films

Jae Ho You, Sung Wook Choi, Jung Hyun Kim, Young Tae Kwak

Research output: Contribution to journalArticle

14 Citations (Scopus)


Poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) multiblock copolymers at various hydrophobic-hydrophilic ratios were successfully synthesized by the chain extension of triblock copolymers through isocyanate (hexamethylene diisocyanate). Biodegradable films were prepared from the resulting multiblock copolymers using the casting method. The mechanical properties of the films were improved by chain extension of the triblock copolymers, whereas the films prepared by the triblock copolymers were weak and brittle. Atomic force microscopy (AFM) of the multiblock copolymer film showed that the hydrophilic PEG had segregated on the film surface. This is consistent with the observed contact angle of the films.

Original languageEnglish
Pages (from-to)609-613
Number of pages5
JournalMacromolecular Research
Issue number7
Publication statusPublished - 2008 Jan 1


All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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