Gen Hayase, Kazuyoshi Kanamori and Kazuki Nakanishi
Journal of Materials Chemistry 21(43) 17077-17079 Sep 2011 [Refereed]
We report new flexible "marshmallow-like" aerogels and xerogels with a bendable feature from the methyltrimethoxysilane (MTMS) and dimethyldimethoxysilane (DMDMS) co-precursor systems. A 2-step acid/base sol-gel process and surfactant are employed...
Kazuyoshi Kanamori, Yasunori Kodera, Gen Hayase, Kazuki Nakanishi and Teiichi Hanada
Journal of Colloid and Interface Science 357(2) 336-344 Mar 2011 [Refereed]
A transition from hierarchical pore structures (macro- and meso-pores) to uniform mesopores in monolithic polymethylsilsesquioxane (PMSQ, CH3SiO1.5) gels has been investigated using a sol-gel system containing surfactant Pluronic F127. The precurs...
Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi and Teiichi Hanada
Materials Research Society Symposium Proceedings 1306(mrsf10-1306-bb04-24) 2010 [Refereed]
Recent years, although silica aerogels are expected to be the promising material for energy savings, the lack of mechanical strength prevents from commercial applications such as to low-density thermal insulators. To improve mechanical properties,...
Yasunori Kodera, Gen Hayase, Kazuyoshi Kanamori, Kazuki Nakanishi and Teiichi Hanada
Materials Research Society Symposium Proceedings 1306(mrsf10-1306-bb10-05) 2010 [Refereed]
A transition of porous structures in monolithic poly(methylsilsesquioxane) (PMSQ, CH3SiO1.5) gels from uniform mesopores to hierarchical pore structures consisting of macro- and mesopores, has been investigated using a sol-gel system containing su...
Gen Hayase, Kazuyoshi Kanamori and Kazuki Nakanishi, Teiichi Hanada
IOP Conference Series: Materials Science and Engineering 18(032013) 2011 [Refereed]
Although silica aerogel is expected to be the material for energy savings, the lack of the strength prevents from commercial applications such as to low-density thermal insulators and acoustic absorbents. To improve mechanical properties, methyltr...
Kazuyoshi Kanamori, Gen Hayase, Kazuki Nakanishi and Teiichi Hanada
IOP Conference Series: Materials Science and Engineering 18(032001) 2011 [Refereed]
Organic-inorganic hybrid aerogels have been prepared by an acid/base two-step solgel reaction utilizing urea and surfactant. Polycondensation of methyltrimethoxysilane (MTMS) is promoted by the hydrolysis of urea, and the hydrophobicity of condens...
Effects of Starting Compositions on the Properties of Methylsilsesquioxane Aerogels
Gen Hayase, Kazuyoshi Kanamori and Kazuki Nakanishi, Teiichi Hanada
Materials Research Society Symposium Proceedings 2011 [Refereed]
