Direct Observation of PMMA Stereocomplexation from Isolated Chains

2015 Fiscal Year Final Research Report

• Project/Area Number: 26620092
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry
• Research Institution: Yamagata University
• Principal Investigator: Kumaki Jiro 山形大学, 理工学研究科, 教授 (00500290)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: ステレオコンプレックス / 超薄膜 / 走査プローブ顕微鏡 / 高分子多重らせん / 高分子構造・物性

Outline of Final Research Achievements

Molecular mechanism of poly(methyl methacrylate) (PMMA) stereocomplexation is still not well-understood. In this work, we tried to observe the stereocomplexation process from isolated chains by atomic force microscopy. We solubilized a small amount of stereoregular PMMAs in a matrix monolayer as isolated chains, then, compressed the mixed monolayer to form stereocomplex. We successfully observed stereocomplexes composed of a few PMMA chains, in which only a part of it- and st-PMMA chains gathered and formed a stereocomplex with the residual chains emanated from it. We believe that further detailed study will improve our understanding of molecular mechanism of PMMA stereocomplexation.

Free Research Field

高分子物性、高分子超薄膜、原子間力顕微鏡