| Project/Area Number |
16K14079
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Nagoya University |
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Principal Investigator |
Takano Atsushi 名古屋大学, 工学研究科, 准教授 (00236241)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | ポリ（アルキルスチレン） / ガラス転移温度 / 粘弾性 / 相溶性 / ポリアルキルスチレン / パッキング長 / 高分子構造・物性 / 高分子合成 |
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| Outline of Final Research Achievements |
In this study, a series of poly(n-alkylstyrene)s with the different number of carbon atoms (n) in the side alkyl groups (n=1-8) were synthesized by a anionic polymerization, and the glass transition temperature (Tg) and the viscoelasticity of the polymers were investigated.
Molecular weight dependence of Tg for poly(n-alkylstyrene)s were investigated by DSC. As the length of the alkyl side chain increases, the Tg of the poly(n-alkylstyrene)s decreases monotonically. It is considered that as the alkyl side chain increases, backbone chain mobility (segmental mobility) increases as well. Furthermore entanglement molecular weights (Me) for poly(n-alkylstyrene)s were investigated by dynamic viscoelastic measurements. As the length of the alkyl side chain increases, the Mes of the poly(n-alkylstyrene) increases monotonically. It is considered that as the length of side chain of the poly(n-alkylstyrene) increases, molecular chain size becomes thicker.
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