| abstract |
Disclosed is a polysiloxane block copolymer which does not contain covalently linked terminal halogens and which can remove as easily and completely as possible transition metals used as catalysts. The present invention relates to a formula A [LB (S) Q] m (wherein A is a polysiloxane block, L is a divalent organic linking group, and B is a radically polymerizable monomer. A polysiloxane block copolymer, wherein S is a sulfur atom, Q is a monovalent organic group, and m is an integer of 1 to 50, and a production method thereof, and Relates to its use in makeup or personal care. [Selection figure] None |