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bce ›› 2018, Vol. 52 ›› Issue (6): 62-66.doi: 10.3969/j.issn.1673-5854.2018.06.010

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RAFT Polymerization of Dehydroabietic Acid Monomer with CPDB Chain Transfer Reagent

GUO Tengfei, WANG Chunpeng   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2017-04-12 Online:2018-11-30 Published:2018-12-12

Abstract: Using (β-methylacryloyloxy)propyl ester of dehydroabietic acid(DAHPMA) as monomer, azobisisobutyronitrile(AIBN) as initiator and 2-cyano-2-propyl benzodithioate(CPDB) as chain transfer reagent, dehydroabietic acid ester homopolymer was prepared by reversible addition-fragmentation transfer radical polymerization(RAFT) in tetrahydrofuran solution. The successful synthesis of the rosin homopolymer was confirmed by nuclear magnetics, and the contact angle test showed high hydrophobicity of the polymer. The kinetic study showed that the dehydroabietic acid monomer could be active and controlled under RAFT polymerization. The concentration of CPDB was found to be related to the polymerization process. Rate and controllability as well as molecular weight and molecular weight distribution had a certain impact.

Key words: rosin monomer, reversible addition-fragmentation polymerization, dynamics

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