Development of synthetic methods for particle size controlled element-blocks based on silsesquioxanes

2016 Fiscal Year Final Research Report

• Project Area: Creation of Element-Block Polymer Materials
• Project/Area Number: 24102003
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: Naka Kensuke 京都工芸繊維大学, 分子化学系, 教授 (70227718)
• Project Period (FY): 2012-06-28 – 2017-03-31
• Keywords: シルセスキオキサン / POSS / 無機高分子 / 光学的透明膜 / 二官能性モノマー / 有機ヒ素化合物

Outline of Final Research Achievements

Thermoplastic optically transparent silsesquioxane materials derived from a single caged silsesquioxane compound can be achieved by dumbbell- and star-shaped caged structures, which can precisely design their structures for tuning their properties. Well-defined caged silsesquioxane monomers having two polymerizable functional groups were prepared by a selective corner-opening reaction of monofunctional caged silsesquioxanes and a subsequent corner-capping reaction. Polymerization of the difunctional caged silsesquioxane monomers with appropriate co-monomers resulted in transparent self-standing films. The present monomers would contribute to design novel element-block polymeric materials with well-defined properties. Novel element-blocks based on organoarsenic compounds were also prepared by newly developed practical synthetic methods to stimulate the field of organoarsenic chemistry as well as enlarging library of element-blocks.

Free Research Field

無機高分子