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KAKEN_24684032seika.pdf
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| Title |
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高分子の圧力誘起液液相転移の探索
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| Kana |
コウブンシ ノ アツリョク ユウキエキ エキソウ テンイ ノ タンサク
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Kobunshi no atsuryoku yukieki ekiso teni no tansaku
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Search of pressure-induced liquid-liquid transitions in polymers
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千葉, 文野
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チバ, アヤノ
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Chiba, Ayano
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慶應義塾大学・理工学部・講師
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Research team head
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科研費研究者番号 : 20424195
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2016
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科学研究費補助金研究成果報告書
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2015
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結晶構造間の相転移は良く知られ, 構造の変化に伴う物性の変化は良く研究されている。近年, 液体状態においても複数の構造をとりえて, 構造間で相転移が存在することが提唱され, 液液相転移と呼ばれている。本研究は, 高分子溶融体においても液液相転移が存在することを実験的に明らかにする目的で行った。高分子P4MP1を始めとするいくつかの高分子で圧力誘起で溶融体から溶融体への構造変化を発見することができた。また, 1種類の高分子によって, 室温・常圧で安定な2種類のアモルファス固体の作製を試みた。
Phase transitions between crystalline structures are well known, and the changes of physical properties that accompanies the transitions have been extensively studied. Recently it has been widely accepted that even liquids can have several structures and there can be phase transitions between liquid structures. In this study, we aim to prove that there are such liquid-liquid phase transitions in polymer melts, and found pressure-induced structural changes in some polymer melts. We also tried to create two amorphous solids by one polymer, which are stable at room temperature and atmospheric pressure.
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研究種目 : 若手研究(A)
研究期間 : 2012～2015
課題番号 : 24684032
研究分野 : 液体
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