Crystallization and Interface-formation Kinetics of Organic Polymers in Spin-coating Film-Forming Processes

2016 Fiscal Year Final Research Report

• Project/Area Number: 26410135
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Polymer chemistry
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: SASAKI SONO 京都工芸繊維大学, 繊維学系, 教授 (40304745)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: スピンコート成膜法 / 有機高分子薄膜 / 放射光微小角入射X線散乱 / 結晶化キネティクス / 結晶化速度 / 結晶の配向性

Outline of Final Research Achievements

In this study, an experimental method has been established by utilizing a grazing-incidence X-ray scattering system in the largest synchrotron radiation facility, SPring-8 in order to investigate crystallization and interface -formation kinetics for organic polymers on Si substrates in spin-coating film-forming processes. Samples used in this study were blends of a poly(3-alkylthiophene) and a fullerene derivative as well as biodegradable and biocompatible polyesters. It was experimentally found that (1) the nucleation rate of polymers increased with increasing the rotational rate of the substrate. (2) The crystallization rate of polymers changed depending on the rotational rate of the substrate and the initial concentration of polymer solutions. (3) Crystallization rate of polymers decreased with increasing the Mw.　(4) Concentration fluctuation may generate in the perpendicular direction to the substrate surface before nucleation.

Free Research Field

複合化学・高分子化学