Method for producing liquid crystalline polyorganosiloxane having methacryloxy group and / or acryloxy group and film comprising said liquid crystalline polyorganosiloxane

摘要

Prepn. of a liquid crystalline (LC) polyorganosiloxane (I) contg. methacryloxy and/or acryloxy gps. comprises (a) reacting a polyorganosiloxane (II) having Si-bonded H with alkenes and/or alkynes contg. mesogenic gps.; and (b) reacting the prod. with an alkene and/or alkyne contg. (meth)acryloxy gp(s). and mesogenic gps. Also claimed are (I) prepd. in this way; a method of crosslinking (I) by UV light in the presence of photoinitiators and/or photosensitisers; and the 3D crosslinked (I) per se.