私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置: 首頁 >> 產業發展 >> 正文

New Developments in Polylactide Chemistry

時間:2004-12-10
關鍵詞:New Developments Polylactide Chemistry 來源:In Commemoration of The 50 Years of Polymer Education and Research at Peking University,May,2004

 

Zhiyuan Zhong, Pieter J. Dijkstra, and Jan Feijen*
 

Polymer Chemistry & Biomaterials Group (PBM) and

Institute for Biomedical Technology (BMTI),

Faculty of Sciences and Technology, University of Twente,

P.O.Box 217, 7500 AE Enschede, the Netherlands.

 

 

 Polylactides and their copolymers are key biodegradable polymers used widely for biomedical, pharmaceutical and ecological applications. The development of synthetic pathways and catalyst systems to produce pre-designed polylactides as well as the fundamental understanding of the polymerization reactions has continuously been an important topic. In this context, we will address the basic aspects of the chemistry of polylactides, discuss catalyst systems of preparative significance, and survey the recent advances in the ring-opening polymerization of lactides. The past decade has witnessed remarkable progress of polylactide chemistry, which includes: (1) in-situ generated initiator systems, which promote a rapid living polymerization of lactides under mild conditions, allowing a facile preparation of various structures; (2) structurally defined catalysts which facilitate kinetic and mechanistic studies; and (3) stereoelective/stereoselective polymerization catalysts which can be used for the preparation of polylactides with novel microstructures and properties.

 論文來源:In Commemoration of The 50 Years of Polymer Education and Research at Peking University,May,2004

主站蜘蛛池模板: 鸡西市| 子洲县| 凉山| 星座| 玉溪市| 平利县| 正宁县| 阿拉善左旗| 河源市| 双桥区| 汶川县| 盈江县| 靖州| 车致| 策勒县| 合阳县| 正镶白旗| 中江县| 黔江区| 诸暨市| 抚松县| 邯郸县| 两当县| 定南县| 吴江市| 松桃| 长沙县| 塔河县| 新平| 大姚县| 宁阳县| 商都县| 拉萨市| 拜泉县| 米泉市| 宁海县| 江孜县| 山东省| 双江| 巢湖市| 博白县|