2011 Fiscal Year Final Research Report

Investigation of relationship between transport phenomena and spatial structure of nanoparticles in nanoparticles/polymer composite thin films

Research Project

Project/Area Number	21360375
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	Properties in chemical engineering process/Transfer operation/Unit operation
Research Institution	Tohoku University
Principal Investigator	TSUKADA Takao 東北大学, 大学院・工学研究科, 教授 (10171969)
Co-Investigator(Kenkyū-buntansha)	AJIRI Tadafumi 東北大学, 多元物質科学研究所, 教授 (60182995) KUBO Masaki 東北大学, 大学院・工学研究科, 准教授 (50323069)
Project Period (FY)	2009 – 2011
Keywords	ナノ粒子 / 高分子 / コンポジット薄膜 / 流動 / 拡散 / 塗布 / 空間構造 / 塗布欠陥
Research Abstract	For the design and optimization of coating process of nanoparticles/polymer composite thin films and their devise manufacturing, solvent evaporation from the films and dewetting dynamics of the films during thermal annealing were observed, and the relationship between these phenomena and the spatial structure of nanoparticles in the films was investigated. The evaporation rate of organic solvent from the film was strongly affected by the presence of nanopraticles. The dewetting was suppressed by adding nanoparticles which segregated to the film surface. Brownian dynamics simulations suggested that the dispersion state of nanoparticles in solvent depends on the combination of solvent and organic molecules to modify the nanoparticle surface.

(4 results)