PROBLEM TO BE SOLVED: To provide a phosphorylcholine group-containing polymer which is excellent in biocompatibility and biodegradability and is suitable as a carrier material for drug delivery systems, a scaffold material for regenerative medicine, an adhesion prevention material, etc.SOLUTION: An alternately copolymerized polyester amide of an α-amino acid having a phosphorylcholine group of formula (7) in a side chain and a glycolic acid and a polyether ester amide having polyether groups in the principal chain are provided. In formula (7), Z is an arbitrary bond group with the α-amino acid, and A4 is a divalent organic group.COPYRIGHT: (C)2015,JPO&INPIT【課題】生体親和性及び生分解性に優れ、ドラッグデリバリーシステム用キャリア材料や再生医療用の足場材料、癒着防止材料等として好適なホスホリルコリン基含有重合体を提供する。【解決手段】側鎖に式(7)で表されるホスホリルコリン基を有するα-アミノ酸とグリコール酸の交互共重合ポリエステルアミド、もしくは、さらに主鎖にポリエーテル基を有するポリエーテルエステルアミド。(式中Zはα-アミノ酸との任意の結合基を示し、A4は2価の有機基を示す。【選択図】なし
