申请人:The Scripps Research Institute
公开号:US10717820B2
公开(公告)日:2020-07-21
Condensation of fluoro-substituted and silyl-substituted monomers provides polymers suitable for use, e.g., as engineering polymers. A monomer composition is condensed in the presence of a bifluoride or poly(hydrogen fluoride) fluoride salt. The monomer composition contains a compound of formula F-X-F and a compound of formula (R1)3Si—Z—Si(R1)3, and forms an alternating X-Z polymer chain and a silyl fluoride byproduct. X has the formula -A(-R2-A)n-; each A is SO2, C(═O), or Het; R2 is an organic moiety; n is 0 or 1; Het is an aromatic nitrogen heterocycle; Z has the formula -L-R3-L-; each L is O, S, or N(R4); and each R3 is an organic moiety, and R4 comprises H or an organic moiety.
氟取代单体和硅取代单体的缩合可提供适用于工程聚合物等用途的聚合物。单体组合物在双氟化物或聚(氟化氢)氟化盐存在下缩合。单体组合物含有式 F-X-F 的化合物和式 (R1)3Si-Z-Si(R1)3 的化合物,并形成交替的 X-Z 聚合物链和氟化硅副产物。X具有式-A(-R2-A)n-;每个A是SO2、C(═O)或Het;R2是有机分子;n是0或1;Het是芳氮杂环;Z具有式-L-R3-L-;每个L是O、S或N(R4);每个R3是有机分子,R4包括H或有机分子。