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

Daisaku Ito; Daisuke Kawaguchi; Atsushi Takano; Yushu Matsushita

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

Daisaku Ito, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita

Research output: Contribution to conference › Paper › peer-review

Abstract

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 T_max 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 language	English
Pages	1051
Number of pages	1
Publication status	Published - 2005
Externally published	Yes
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: May 25 2005 → May 27 2005

Other

Other	54th SPSJ Annual Meeting 2005
Country/Territory	Japan
City	Yokohama
Period	5/25/05 → 5/27/05

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

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title = "Evaluation of miscibility of polystyrene derivatives with bulky 4-substituent/polyisoprene blends",

abstract = "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.",

author = "Daisaku Ito and Daisuke Kawaguchi and Atsushi Takano and Yushu Matsushita",

year = "2005",

language = "English",

pages = "1051",

note = "54th SPSJ Annual Meeting 2005 ; Conference date: 25-05-2005 Through 27-05-2005",

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TY - CONF

T1 - Evaluation of miscibility of polystyrene derivatives with bulky 4-substituent/polyisoprene blends

AU - Ito, Daisaku

AU - Kawaguchi, Daisuke

AU - Takano, Atsushi

AU - Matsushita, Yushu

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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M3 - Paper

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SP - 1051

T2 - 54th SPSJ Annual Meeting 2005

Y2 - 25 May 2005 through 27 May 2005

ER -

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

Abstract

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