Orientation behavior and micro-phase separated structure of block copolymers under supercritical fluids

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05620
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: Saito Hiromu 東京農工大学, 工学(系)研究科(研究院), 教授 (90196006)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 二酸化炭素 / 高圧 / 力学特性 / ポリウレタン / ミクロ相分離構造 / クレイズ / 結晶

Outline of Final Research Achievements

The mechanical properties became brittle and a filament-shaped porous structure with periodic distance was found to be obtained by stretching low molecular weight polycarbonate under CO2. Distorted domain crystals with uniform optical anisotropy were found to be obtained under CO2 at wide temperature regions by melt crystallization of thermoplastic polyurethanes, while spherulites with Maltese-cross pattern could be obtained at limited temperature region under air at ambient pressure. The difference of the crystalline morphology might be attributed to the change of the microphase separated structure under CO2.

Free Research Field

高分子物性