Study on the shear induced crystallization of poly (L-lactic acid)/poly (D-lactic acid) asymmetric blend

• Project/Area Number: 22750198
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Polymer/Textile materials
• Research Institution: Gunma University
• Principal Investigator: KAWAI Takahiko 群馬大学, 大学院・工学研究科, 助教 (50432323)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: ポリ乳酸 / ステレオコンプレックス / 結晶化 / 流動場 / 高分子構造・物性 / 環境材料

Research Abstract

Effect of shear flow on the crystallization behavior of poly(L-lactic acid)/poly(D-lactic acid) blend was investigated by means of Small-Angle and Wide-Angle X-ray scattering measurements with an aid of synchrotron radiation. In addition to the great enhancement in its crystallization rate, it was also found that stereocomplex network structure in the molten state of poly(L-lactic acid) transform into shish structure under shear flow.

Research Products

• [Presentation] ポリ(L-乳酸)/ポリ(D-乳酸)ブレンドの流動場における結晶化 (2011)
  • Author(s): 河井貴彦, 他5名
  • Organizer: 第47回熱測定討論会
  • Place of Presentation: 桐生市文化会館(群馬)
  • Year and Date: 2011-10-23
• [Presentation] ポリ(L-乳酸)/ポリ(D-乳酸)ブレンドの熱延伸過程における構造形成 (2011)
  • Author(s): 尾沼龍道, 河井貴彦, 他6名
  • Organizer: 第47回熱測定討論会
  • Place of Presentation: 桐生市文化会館(群馬)
  • Year and Date: 2011-10-21
• [Presentation] PLLA/PDLA非対称ブレンドの流動場における構造形成 (2011)
  • Author(s): 河井貴彦, 他4名
  • Organizer: 平成23年度繊維学会年次大会
  • Place of Presentation: タワーホール船堀(東京)
  • Year and Date: 2011-06-08
• [Presentation] 流動場におけるポリ(L-乳酸)/ポリ(D-乳酸)ブレンドの結晶化 (2011)
  • Author(s): 米山飛鳥, 河井貴彦, 他4名
  • Organizer: 第60回高分子学会年次会
  • Place of Presentation: 大阪国際会議場(大阪)
  • Year and Date: 2011-05-27
• [Presentation] PLLA/PDLAブレンドの延伸による結晶化 (2011)
  • Author(s): 岩崎隆行, 河井貴彦, 他5名
  • Organizer: 第60回高分子学会年次会
  • Place of Presentation: 大阪国際会議場(大阪)
  • Year and Date: 2011-05-27