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Synthesis of Block Copolymers of Varying Architecture Through Suppression of Transesterification during Coordinated Anionic Ring Opening Polymerization.

作者信息

Lipik Vitali T, Abadie Marc J M

机构信息

School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue 50, Singapore 639798.

出版信息

Int J Biomater. 2012;2012:390947. doi: 10.1155/2012/390947. Epub 2012 Jul 5.

DOI:10.1155/2012/390947
PMID:22844286
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3398607/
Abstract

Well-defined di- and triblock copolymers consisting of ε-caprolactone (CL), L-lactide (LA), and trimethylene carbonate (TMC) were synthesized via "PLA first route" in coordinated anionic ring opening polymerization/copolymerization (CAROP) with tin (II) octoate as catalyst. The desired block structure was preserved by use of protective additive α-methylstyrene by preventing the transesterification side-reactions. MALDI-TOF analysis revealed that the protection mechanism is associated with α-methylstyrene and tin (II) octoate complexation. Additionally, it was shown that use of α-methylstyrene in ring opening polymerization allowed the formation of polyesters with high molar mass.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/8733cbbe937b/IJBM2012-390947.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/452184879d8b/IJBM2012-390947.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/c89751acba66/IJBM2012-390947.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/c163b45739bb/IJBM2012-390947.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/9ef09882dafd/IJBM2012-390947.sch.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/9acd223c5d40/IJBM2012-390947.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/709fce4d444d/IJBM2012-390947.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/5ae4c9cc1c70/IJBM2012-390947.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/8733cbbe937b/IJBM2012-390947.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/452184879d8b/IJBM2012-390947.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/c89751acba66/IJBM2012-390947.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/c163b45739bb/IJBM2012-390947.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/9ef09882dafd/IJBM2012-390947.sch.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/9acd223c5d40/IJBM2012-390947.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/709fce4d444d/IJBM2012-390947.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/5ae4c9cc1c70/IJBM2012-390947.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da1/3398607/8733cbbe937b/IJBM2012-390947.007.jpg

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本文引用的文献

1
Triblock copolymers of ε-caprolactone, trimethylene carbonate, and L-lactide: effects of using random copolymer as hard-block.ε-己内酯、三亚甲基碳酸酯和 L-丙交酯的三嵌段共聚物：使用无规共聚物作为硬段的影响。
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Resilient bioresorbable copolymers based on trimethylene carbonate, L-lactide, and 1,5-dioxepan-2-one.
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基于碳酸三亚甲基酯、L-丙交酯和1,5-二氧杂环庚烷-2-酮的可生物降解弹性共聚物
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Ring-opening polymerization of lactide with group 3 metal complexes supported by dianionic alkoxy-amino-bisphenolate ligands: combining high activity, productivity, and selectivity.由双阴离子烷氧基-氨基-双酚盐配体支撑的第3族金属配合物引发的丙交酯开环聚合反应：兼具高活性、高生产率和高选择性
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