Novel miscible polymer blend of poly(4-trimethylsilylstyrene) and polyisoprene

Masashi Harada, Takahisa Suzuki, Masayuki Ohya, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The phase behavior of the newly found miscible polymer blends poly(4-trimethylsilylstyrene) and polyisoprene was investigated with optical microscopy (OM) and also with differential scanning calorimetry (DSC), while the degree of polymer-polymer interaction was evaluated with small-angle neutron scattering (SANS). The blends with homogeneous one phase at various compositions turned into two phases by heating, showing a lower critical solution temperature (LCST) type phase diagram with a critical temperature of 172 °C if the degree of polymerization is ca. 370. The blend gave a single glass transition temperature below the LCST, and the interaction parameter χ was represented as a function of temperature T according to the relationship χ = 0.027 - 9.5/T.

Original languageEnglish
Pages (from-to)1868-1873
Number of pages6
Issue number5
Publication statusPublished - Mar 8 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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