Isobutyl Polysilsesquioxane is a resinous material composed of a mixture of three-dimensional siloxane polymers and oligomers with cage structures.
定义
Isobutyl Polysilsesquioxane is a resinous material composed of a mixture of three-dimensional siloxane polymers and oligomers with cage structures. For the oligomers, each silicon atom in the polysilsesquioxane is connected via oxygen atoms to three other silicon atoms and can be represented by the empirical formulation RSiO3/2 where R represents the isobutyl group. For the larger polymeric polysilsesquioxanes, some of the silicon atoms are not connected to other silicon atoms and instead have a silanol (SiOH) group. Isobutyl Polysilsesquioxane is prepared by the hydrolysis and condensation of 2-methylpropyl trimethoxysilane.
化妆品中的作用
安全与法规参考
Reviewed by CIR: Final Report: Safety Assessment of Polysilsesquioxanes as Used in Cosmetics
来源: 美国CIR 安全性评估
详细资料——标示名称、识别编号、物性、试验记录、文献
别名和识别信息
- CAS No.化学物质登记号
- 221326-46-1
- DTXSID美国EPA化学品编号
- DTXSID40944777
- DTXCID美国EPA化合物编号
- DTXCID801373109
- IUPAC
- 1,3,5,7,9,11,13,15-Octakis(2-methylpropyl)pentacyclo[9.5.1.1~3,9~.1~5,15~.1~7,13~]octasiloxane
- 分子式
- C32H72O12Si8
- 分子量
- 873.596 g/mol