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

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 super(1) H/ super(13) C-NMR and mass spectrometry (MS). Ringopening metathesis polymerization (ROMP) of these monomers...

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Bibliographic Details
Published in:Chinese journal of polymer science 2017-01, Vol.35 (1), p.36-45
Main Authors: Yang, Ji-xing, Ren, Li-xia, Li, Yue-sheng
Format: Article
Language:English
Subjects:
Anhydrides
Catalysts
Copolymers
Decomposition reactions
Derivatives
Metathesis
Polymerization
Solubility
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Summary: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 super(1) H/ super(13) C-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.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-017-1873-1