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.
本发明涉及一种新型的
氟硅橡胶聚合物,具有非常低的表面张力、优异的耐油性、优异的耐热性等特点。本发明的
氟硅橡胶聚合物是由以下式子的
硅氧烷单元组成的
氟硅橡胶聚合物 [F(CF.sub.2).sub.a C.sub.2 H.sub.4 ].sub.2 SiO.sub.2/2 (a),其中a是一个整数,取值为1到10,并且由以下式子所代表的
氟硅橡胶聚合物 [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) 组成,其中a是一个整数,取值为1到10,x是一个整数,取值至少为2,y是一个整数,取值至少为1,x>y,R是一种单价碳氢基团。