Controlling of Crystal Orientation and Physical Properties of Biocompatible Polymer by Magnetic Processing

2015 Fiscal Year Final Research Report

• Project/Area Number: 25870356
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry; Wood science
• Research Institution: Kyoto University
• Principal Investigator: Kusumi Ryosuke 京都大学, (連合)農学研究科(研究院), 助教 (70546530)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ポリ(L-乳酸) / セルロース / 結晶核剤 / 磁場配向 / エピタキシャル成長

Outline of Final Research Achievements

This research aimed at a fabrication of novel anisotropic materials from renewable resources and an establishment of a method to analyze their structures. The 31P chemical shift tensor for phenylphosphonic acid (PPA) was successfully determined by a combination of a magnetic alignment and standard procedure of the single-crystal rotation method in solid-state NMR spectroscopy, indicating that the magnetic alignment can provide a powerful means of determining all of the information on 31P CSA from a microcrystalline powder. On the other hand, the alignment of poly(L-lactic acid) (PLLA) crystals was also achieved by epitaxial growth on a magnetically-oriented nucleating agent. Cellulose nanocrystal, of which surface is chemically treated, can be expected as a substrate for alignment of PLLA via crystal growth on the surface.

Free Research Field

農学