Ring-opening metathesis polymerization of cis-5-norbornene-endo-2,3-dicarboxylic anhydride derivatives using the grubbs third generation catalyst

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• 作者：Ji-xing Yang ; Li-xia Ren 任丽霞 ; Yue-sheng Li
• 关键词：Living polymerization ; Ring ; opening metathesis polymerization ; Amphiphilic block copolymer ; Anhydride group
• 刊名：Chinese Journal of Polymer Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：35
• 期：1
• 页码：36-45
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
• 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
• ISSN：1439-6203
• 卷排序：35

文摘

A series of cis-5-norbornene-endo-2,3-dicarboxylic anhydride (NDCA, M1) derivatives (M2−M4) with different types of nonpolar substituted groups were synthesized and characterized by 1H/13C-NMR and mass spectrometry (MS). Ringopening metathesis polymerization (ROMP) of these monomers using the Grubbs third generation catalyst (G3) generated high molecular weight polymers with much improved solubility compared with the NDCA’s homopolymer. It was found that the solubility of these polymers increased with increased substituent’s steric hindrance. The living polymerization of NDCA derivative containing the bulkiest substituent (M4) catalyzed by G3 in tetrahydrofuran was confirmed by the kinetic studies with low polydispersity indices (PDI) (< 1.30). By using sequential ROMP, well-defined diblock copolymers containing anhydride groups were synthesized.