Synthesis and Characterization of well Defined Polychloroprene by RAFT Polymerization

Jia Hui; Yan Shi; Zhi Feng Fu

doi:10.4028/www.scientific.net/AMR.787.241

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 787Synthesis and Characterization of well Defined...

Synthesis and Characterization of well Defined Polychloroprene by RAFT Polymerization

Abstract:

Well defined polychloroprene has been synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization with 2-(ethoxycarbonyl) prop-2-yl dithiobenzoate (EPDTB) as RAFT agent, AIBN as initiator, Chloroprene as monomer. Polymerization with two different feed ratios of monomer to RAFT agent were carried out. The sampling products at different reaction times were characterized using GPC and ¹H-NMR. The GPC results demonstrated the molecular weight distributions (M_w/M_n) were narrow, and the number average molecular weight (M_n) was developed linearly with monomer conversion. All the characteristic signals of polychloroprene with the EPDTB as terminal groups were clearly observed in the ¹H-NMR spectrum. In addition, the chain-extended polymers were also obtained successfully using the macro-RAFT agent, which indicated the active nature of the chain end.

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Periodical:

Advanced Materials Research (Volume 787)

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241-244

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.787.241

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Online since:

September 2013

Authors:

Jia Hui, Yan Shi, Zhi Feng Fu

Keywords:

Chloroprene, Reversible Addition Fragmentation Chain Transfer (RAFT), Solution Polymerization

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