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      RAFT-mediated Pickering emulsion polymerization with cellulose nanocrystals grafted with random copolymer as stabilizer†

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      RSC Advances
      The Royal Society of Chemistry

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          Abstract

          The synthesis of a RAFT-mediated Pickering emulsion was firstly achieved by using cellulose nanocrystals (CNCs) grafted with a random copolymer as the stabilizer. Firstly, poly(acrylonitrile- r-butyl acrylate) (poly(AN- r-nBA)) was synthesized by Cu(0)-mediated CRP, which was further modified via a click chemistry strategy to obtain poly(ethylene tetrazole- r-butyl acrylate) (poly(VT- r-nBA)). Then, poly(VT- r-nBA) was grafted onto the CNCs through a Mitsunobu reaction to obtain poly(VT- r-nBA)- g-CNCs. Stabilized by poly(VT- r-nBA)- g-CNCs, an O/W RAFT-mediated Pickering emulsion was formed for the preparation of well-controlled poly(methyl methacrylate) (PMMA) particles with water-soluble potassium persulfate (KPS) as an initiator and oil-soluble 4-cyanopentanoic acid dithiobenzoate (CPADB) as a chain transfer agent. Rheological analysis suggested that the prepared Pickering emulsion possessed good stability under the influences of changes in strain, time, frequency and temperature. Furthermore, the recycling and further utilization of the poly(VT- r-nBA)- g-CNCs could be simply realized through centrifugal separation.

          Abstract

          A RAFT-mediated Pickering emulsion with cellulose nanocrystals grafted with a random copolymer was used for the preparation of poly(methyl methacrylate) particles..

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          Author and article information

          Journal
          RSC Adv
          RSC Adv
          RA
          RSCACL
          RSC Advances
          The Royal Society of Chemistry
          2046-2069
          13 August 2018
          7 August 2018
          13 August 2018
          : 8
          : 50
          : 28660-28667
          Affiliations
          [a] School of Chemistry and Materials Science, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Ludong University Yantai 264025 China wenxiang-tianshi@ 123456163.com ldupolymchen@ 123456163.com +86-535-6669070 +86-535-6697933
          [b] Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Ludong University Yantai 264025 China
          Article
          c8ra03816c
          10.1039/c8ra03816c
          9084400
          35548399
          c9b64b06-afd2-466f-a99b-b9b276c11277
          This journal is © The Royal Society of Chemistry
          Page count
          Pages: 8
          Funding
          Funded by: National Natural Science Foundation of China, doi 10.13039/501100001809;
          Award ID: 51773086, 51573075 and 21501087
          Categories
          Chemistry
          Custom metadata
          Paginated Article

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