| 摘要 |
<p>PURPOSE: Ploysiloxane is provided to be able to maintain a high transparency, a low haze and an excellent impact strength even in a high temperature molding condition when forming a copolymer with polycarbonate, polyurethane or polyester. CONSTITUTION: Polysiloxane is represented by Chemical formula 1, wherein R^1, R^2, R^3 and R^4 are, respectively, substituted or non-substituted C1-C10 alkyl, or substituted or non-substituted C6-C18 aryl, R" is C4-C20 aliphatic or cycloaliphatic hydrocarbon, the carbon positioned in the second position from the hydroxyl is substituted with alkyl or cycloalkyl, and n is an integer of 30-90. A manufacturing method of the polysiloxane comprises a step of reacting an end hydrogen siloxane and an aliphatic hydroxyl derivative represented by Chemical formula 2.</p> |
