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

Current Location :> Home > Publications > Text
[(salen)Al]-mediated, controlled and stereoselective ring-opening polymerization of lactide in solution and without solvent: Synthesis of highly isotactic polylactide stereocopolymers from racemic D,L-lactide
writer:
keywords:

This paper communicated controlled and stereoselective ring-opening polymerization of lactide in solution as well as in the bulk by using a chiral salen-aluminum catalyst.