据报道,在过氧化物或Pt催化剂的存在下,各种氟化烯烃和二烯与不同的氯硅烷和三(氟代烷基)硅烷的氢化硅烷化。反应性受到硅烷和氟化烯烃的结构的显着影响。描述了以下(氟代烷基)氯硅烷和(氟代烷基)-α,ω-氯代乙硅烷;C 6 F 13(CH 2)n,SiR 1 R 2 Cl,其中n = 2或3,以及(ClR 1 R 2 SiC 2 H 4 C 3 F 6)2和R 1p = R 2= Cl,R 1= Cl,R 2= CH 3或C 2 H 4 CF 3,R 1= R 2= CH 3,R 1= CH 3,R 2= C 6 H 5。还已经合成了三种新的四(氟代烷基)硅烷。所有产物均通过1 H,19 F和29 Si NMR光谱表征。
The synthesis and structural characterization of tetra(1H, 1H, 2H, 2H-polyfluoroalkyl)silaneswith the same or different chain lengths CnF2n+1 linked to Si (1⩽n⩽6) is reported.
Fluorosilicone polymers and methods for the preparation thereof
申请人:Dow Corning Toray Silicone Co., Ltd.
公开号:US05350824A1
公开(公告)日:1994-09-27
The instant invention pertains to novel fluorosilicone polymers that have a very low surface tension, excellent oil resistance, excellent heat resistance, and so forth. The fluorosilicone polymers of the instant invention are fluorosilicone polymers comprised of siloxane unit with the following formula [F(CF.sub.2).sub.a C.sub.2 H.sub.4 ].sub.2 SiO.sub.2/2 (a) where a is an integer with a value of 1 to 10 and fluorosilicone polymers as represented by the following formula [F(CF.sub.2).sub.a C.sub.2 H.sub.4 ].sub.2 SiO.sub.2/2 }.sub.x (R.sub.2 SiO.sub.2/2).sub.y (c) wherein a is an integer with a value of 1 to 10, x is an integer with a value of at least 2, y is an integer with a value of at least 1, x>y, and R is a monovalent hydrocarbon group.
hydrosilylation of various fluorinated olefins and of a diene with different chlorosilanes and with a tri(fluoroalkyl)silane, in the presence of a peroxide or a Pt catalyst, is reported. The reactivity is influenced considerably by the structure of the silane and of the fluorinated olefin. The following (fluoroalkyl)chlorosilanes and (fluoroalkyl)-α,ω-chlorodisilanes are described; C6F13(CH2)n,SiR1R2Cl
据报道,在过氧化物或Pt催化剂的存在下,各种氟化烯烃和二烯与不同的氯硅烷和三(氟代烷基)硅烷的氢化硅烷化。反应性受到硅烷和氟化烯烃的结构的显着影响。描述了以下(氟代烷基)氯硅烷和(氟代烷基)-α,ω-氯代乙硅烷;C 6 F 13(CH 2)n,SiR 1 R 2 Cl,其中n = 2或3,以及(ClR 1 R 2 SiC 2 H 4 C 3 F 6)2和R 1p = R 2= Cl,R 1= Cl,R 2= CH 3或C 2 H 4 CF 3,R 1= R 2= CH 3,R 1= CH 3,R 2= C 6 H 5。还已经合成了三种新的四(氟代烷基)硅烷。所有产物均通过1 H,19 F和29 Si NMR光谱表征。