Unusual phase behavior of end-functionalized polystyrene-block-poly(n-butyl methacrylate) copolymer with maleic anhydride

Jin Kon Kim, Myung Im Kim, Hye Jeong Kim, Dong Hyun Lee, Unyong Jeong, Hiroshi Jinnai, Kazuya Suda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of various end-functional groups on the phase behavior of polystyrene-block-poly(n-butyl methacrylate) copolymer (PS-b-PnBMA) was investigated by using small-angle X-ray scattering, conventional and 3-D transmission electron microscopy, rheology, and Fourier-transformed infrared spectroscopy. A PS-b-PnBMA with maleic anhydride (SBM66-MAH) exhibited an unexpected thermoreversible transition occurring at higher temperature than its disorder-to-order transition temperature. The transition was very fast and induced a large increase in shear modulus. However, the transition at higher temperature was not observed in other PS-b-PnBMAs with carboxylic acid, diester, and hydrogen end groups.

Original languageEnglish
Pages (from-to)7590-7593
Number of pages4
JournalMacromolecules
Volume40
Issue number21
DOIs
Publication statusPublished - 2007 Oct 16
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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