Synthesis of hyperbranched copolymers by combining enzymatic ring-opening polymerization and ATRP from a novel bifunctional initiator

亢奋的分叉的脂肪族的聚酯 P (epsilon -CL) 借助于 BHB 的催化 Novozyme435 的戒指洞聚合(ROP ) 被综合(2， 2 二度(hydroxymethyl ) 奶油的酸) 。以 P ( epsilon-CL )的氢氧根结束的链被 esteriflcation ofa-bromopropionyl 溴化物修改获得亢奋的分叉的 difunctional 宏开始者，它在圣库克尔姆泰塔的 theATRP 被使用在 ATRP 的反应被用作催化剂系统 polystyrene-block-poly 获得 thehyperbranched 共聚物(2,2二度( hydroxymethyl )奶油的酸)。共聚物被 NMR 和 GPC 证实。

The hyperbranched aliphatic polyester P（ε-CL） was synthesized by means of Novozyme435- catalyzed ring-opening polymerization （ROP） of BHB （2, 2-bis（hydroxymethyl） butyric acid）. The chains ended with hydroxyl of P（ε-CL） were modified by the esterification of α-bromopropionyl bromide to obtain hyperbranched difunctional macroinitiator, which was used in the ATRP of St. CuCI/HMTETA was used as the catalyst system in the reaction of ATRP to acquire the hyperbranched copolymers polystyrene-blockpoly（2,2-bis（hydroxymethyl） butyric acid）. The copolymer was confirmed by NMR and GPC.