D,L-lactide was prepared from D,L-lactic acid by means of polymerization and depolymerization at low vacuum level.Morpholine-2,5-dione(MD) was synthesized from the cyclization of chloroacetyl glycine which was made from chloroacetyl chloride and glycine in the basic condition.A novel copolymer(PLAMD) with D,L-lactide(D,L-LA) and morpholine-2,5-dione(MD) was synthesized using stannous octoate as initiator,and characterized with FT-IR and 1HNMR.The biocompatibility of PLAMD and PLA was investigated by MTT and microscope.The results show that amino acid is introduced into PDLLA main chain.PLAMD has better cell affinity than PLA,so it is a promising biomaterial.
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机译:The preparation and the in-vitro pharmacodynamics study of the intracapsular sustained-release preparations for the prevention of posterior capsule opacification
机译:How the Group Leaders of Lesson Preparation Groups Facilitate Group Learning and Reflective Practice in Chinese Public High Schools =中国公立高中的备课组长是如何引领团队学习和反思性实践的?
机译:神父市政厅,宗教自由和天主教传统。真实地狱中的均一教义发展案例,阿巴耶·圣马德琳(Les Barroux),第二版。修订和扩充,1998年,T。I,系统学,第一期:Preparations,LX + 466页。第二期:成果,278页。 T. II,编年史,总理专着:资料来源,第594页。第二期:所附文件,430页。 T. III,按字母顺序,第一期:参考书目,552页。第二期:一般分析索引,540页。