Silylketene acetals, including "living" GTP polymers, are acylated or sulfonylated in the presence of GTP-effective catalysts with acyl or sulfonyl compounds to produce .beta.-ketoesters or .beta.-sulfonylesters; polymeric products, including capped, coupled and chain-extended polymers and block copolymers can be prepared.
                            Silylketene
乙醇,包括“活性”GTP聚合物,在GTP有效催化剂的存在下与酰基或磺酰基化合物一起酰基化或磺酰基化,以产生β-
酮酸酯或β-磺酰基酯;可以制备聚合物产品,包括帽子,耦合和链延长聚合物和嵌段共聚物。