Evaluation of miscibility of polystyrene derivatives with bulky 4-substituent/polyisoprene blends

Daisaku Ito, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita

Research output: Contribution to conferencePaperpeer-review


Phase behavior of poly(4-trimethylsilylstyrene) (PTMSS) / polyisoprene (PI) and poly(4-tert/-butylstyrene) (P/BS) / PI blends was investigated by optical microscopy and dynamic viscoelasticity. Number-average molecular weights of PTMSS, PtBS and PI were 8.5 × 103, 1.1 × 104 and 6.5 × 103, respectively. PTMSS / PI and PtBS / PI blends were homogeneous and looked transparent in a temperature range from room temperature to 240 °C, suggesting that these blends are miscible. Temperature dependence of dynamic loss tangent, tanδ in these blends exhibits single peaks and its peak top temperature Tmax monotonically increases with increasing PTMSS or PtBS fraction. This result indicates that miscibility of PtBS with PI is similar to that of PTMSS with PI.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005


Other54th SPSJ Annual Meeting 2005

All Science Journal Classification (ASJC) codes

  • General Engineering


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