笼型十缩水甘油基倍半硅氧烷的制备与表征

以3-(2,3-环氧丙氧)丙基三甲氧基硅烷(KH–560)为单体,在异丙醇为溶剂、四甲基氢氧化铵(TMAH)为催化剂的体系中一步水解缩合制备出笼型缩水甘油基倍半硅氧烷(G–POSS)。采用傅立叶变换红外光谱、核磁共振波谱及基质辅助激光解吸飞行时间质谱等手段对产物进行了分析和表征。结果表明,成功地合成了高纯度的笼型十缩水甘油基倍半硅氧烷(T10)。

On State Level Scientific Research Institute Attraction by Local Governments:Experiences and Effects

Due to the characteristics of high scientific research level, frequent international communications, extensive information channels, strong comprehensive strength and big guiding power, state level scientific and research institutes have always been the attraction focus of local governments. The paper described practices of local governments in attracting the institutes and pointed out that these institutes not only have their interior profit-making motive in business development, but also can directly or indirectly accelerate the innovation in science and technol- ogy and promote the transformation of local economy development models.