Pd–phosphinesulfonate bravely battles the “vinyl halide insertion copolymerization” barricade |
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Authors: | Shahaji Gaikwad Satej Deshmukh Samir H Chikkali |
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Institution: | Polymer Science and Engineering Division, CSIR‐National Chemical Laboratory, , Pune, 411008 Maharashtra, India |
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Abstract: | This overview provides insights into the current state‐of‐the‐art solutions to insertion copolymerization of functional olefinic monomers. The challenges in insertion copolymerization of functional olefinic monomers, with a special emphasis on vinyl halides, are highlighted. The crucial design of the Pd–phosphinesulfonate Pd(PO)] enables up to 3.6 mol % incorporation of vinyl fluoride (VF) in an ethylene–VF copolymerization reaction. In a significant development, insertion copolymerization of industrially relevant functional olefin, that is, vinyl chloride (VC), was unambiguously ascertained, and a detectable amount of VC (0.4 mol %) was incorporated (at the chain end). In a detailed investigation, the in situ existence of (PO)Pd? H species during the polymerization was revealed, and it was demonstrated that these are indeed responsible for VC incorporation. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52, 1–6 |
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Keywords: | functional olefin insertion copolymerization palladium catalyst phosphinesulfonate vinyl chloride |
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