Preparation method of nanostructural materials made by biodegradable polymer

2015 Fiscal Year Final Research Report

• Project/Area Number: 25288093
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Hokkaido University
• Principal Investigator: SATOH Toshifumi 北海道大学, 工学(系)研究科(研究院), 教授 (80291235)
• Co-Investigator(Kenkyū-buntansha): KAKUCHI Toyoji 北海道大学, 大学院工学研究院, 教授 (80113538) ; CHEN Yugen 北海道大学, 大学院工学研究院, 特任助教 (00731837) ; ISONO Takuya 北海道大学, 大学院工学研究院, 特任助教 (70740075)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 生分解性高分子 / ナノ構造材料 / 精密合成 / ミクロ相分離

Outline of Final Research Achievements

Biodegradable porous film was fabricated using a rod-coil block copolymer consisting of poly(n-hexylisocyanate) (PHIC) and biodegradable polymers as a compatibilizing agent. At first, we prepared polymer alloy films composed of PHIC, biodegradable polymer, and compatibilizing agent. After annealed the film, the film was soaked into hexane to selectively remove PHIC from the film. The prepared film was observed by atomic force microscope (AFM) and confirmed to form pores. The average pore size was about 500 nm and cross sectional analysis showed that the pore persisted from the top surface to the substrate.　In addition, biodegradable film having microphase-separated structures with sub-20 nm periodicity was fabricated using block copolymers (BCPs) consisting of maltoheptaose and poly(ε-caprolactone) (PCL).

Free Research Field

高分子化学