Title: NEW INITIATORS FOR GROUP TRANSFER POLYMERIZATION
Abstract: It is reported that a variety of trimethylsilyl enol ethers which are not ketene silyl acetals can be used to initiate GTP of methacrylates and acrylates. The new initiators are easy to be prepared using Et3N as catalyst from the reaction of ketones or aldehydes with Me3SiCl. PM-MA and PMA with controlled molecular weight and low polydispersity were obtained by using 1-trimethylsiloxy cyclohexene, 2-trimethylsiloxy butene-2, 2-methyl 1-trimethylsiloxy pro-pene-1 in the presence of bibenzoate, bifluoride and HgI3. The living nature of polymerization is shown by the correspondence of theoretical and observed molecular weight and the preparation of block copolymer. This initiator system provides a very useful method for the synthesis of A-B-A triblockcopolymer of MMA and BA by using GTP.
Publication Year: 1991
Publication Date: 1991-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 1
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot