Roh Sung-Hee, Lee In-Hwa, Cheong Hyeonsook, Noh Ji Eun, Lee Ki Bok, Woo Hee-Gweon, Kim Bo Hye, Jun Jin, Sohn Honglae
J Nanosci Nanotechnol. 2015 Jan;15(1):665-8. doi: 10.1166/jnn.2015.8354.
One-pot Si-Si/Si-O dehydrocoupling of hydrosilanes with alcohols (1:1.5 mole ratio), promoted by a mixture of AgNO3-H2PtCl6 (150/1 mole ratio) readily gave poly(alkoxysilane)s in good yield (62-91%). The addition of small amount of platinum complex to form nanoparticles facilitated the silicon polymer formation when compared to the reaction rate with AgNO3 alone. The primary/secondary hydrosilanes [p-X-C6H4SiH3 (X = H, CH3, OCH3, F), PhCH2SiH3, and (PhSiH2)2] and alcohols [MeOH, EtOH, (i)PrOH, PhOH, and CF3(CF2)2CH2OH] were used for the reaction. The weight average molecular weight and polydispersity of the poly(alkoxysilane)s were in the range of 1,690-7,100 Dalton and 1.44-3.49, respectively. The reaction of phenylsilane with ethanol (1:3 mole ratio) using the Ag-Pt complexes produced triethoxyphenylsilane only, as expected. The reaction of phenylsilane with Ge-132 produced an insoluble cross-linked gel.
在由硝酸银 - 六氯合铂酸（150/1摩尔比）混合物促进下，氢硅烷与醇（1:1.5摩尔比）进行一锅法硅 - 硅/硅 - 氧脱氢偶联反应，很容易以良好产率（62 - 91%）得到聚（烷氧基硅烷）。与单独使用硝酸银的反应速率相比，添加少量铂络合物以形成纳米颗粒促进了硅聚合物的形成。使用伯/仲氢硅烷[p - X - C6H4SiH3（X = H、CH3、OCH3、F）、苯甲基硅烷和（苯基硅氢）2]和醇[甲醇、乙醇、异丙醇、苯酚和CF3(CF2)2CH2OH]进行反应。聚（烷氧基硅烷）的重均分子量和多分散性分别在1690 - 7100道尔顿和1.44 - 3.49范围内。如预期的那样，使用银 - 铂络合物使苯基硅烷与乙醇（1:3摩尔比）反应仅生成三乙氧基苯基硅烷。苯基硅烷与Ge - 132反应生成不溶性交联凝胶。
