

FOLLOWUS
a.China Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
b.Changzhou University Huaide College, Jingjiang 214500, China
c.key Laboratory of Polymer Processing Engineering of Ministry of Education (South China University of Technology), Guangzhou 510000, China
hjyang0519@cczu.edu.cn (H.J.Y.)
ellahwy@cczu.edu.cn (W.Y.H.)
jiangbibiao@cczu.edu.cn (B.B.J.)
Received:26 June 2019,
Revised:2019-8-12,
Accepted:14 August 2019,
Online First:11 October 2019,
Published:2020-03
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Yang, H. J.; Chai, C. Q.; Zuo, Y. K.; Huang, J. F.; Song, Y. Y.; Jiang, L.; Huang, W. Y.; Jiang, Q. M.; Xue, X. Q.; Jiang, B. B. Hybrid copolymerization via the combination of proton transfer and ring-opening polymerization. Chinese J. Polym. Sci. 2020, 38, 231–239.
Hong-Jun Yang, Chen-Qiong Chai, Yong-Kang Zuo, et al. Hybrid Copolymerization
Yang, H. J.; Chai, C. Q.; Zuo, Y. K.; Huang, J. F.; Song, Y. Y.; Jiang, L.; Huang, W. Y.; Jiang, Q. M.; Xue, X. Q.; Jiang, B. B. Hybrid copolymerization via the combination of proton transfer and ring-opening polymerization. Chinese J. Polym. Sci. 2020, 38, 231–239. DOI: 10.1007/s10118-020-2341-x.
Hong-Jun Yang, Chen-Qiong Chai, Yong-Kang Zuo, et al. Hybrid Copolymerization
Phosphazene base
t
-BuP
2
was employed to catalyze the proton transfer polymerization (PTP) of 2-hydroxyethyl acrylate (HEA)
and PTP was further combined with ring-opening polymerization (ROP) to exploit a new type of hybrid copolymerization. The studies on homo-polymerization showed that
t
-BuP
2
was a particularly efficient catalyst for the polymerization of HEA at room temperature
giving an excellent monomer conversion. Throughout the polymerization
transesterification reactions were unavoidable
which increased the randomness in the structures of the resulting polymers. The studies on copolymerization showed that
t
-BuP
2
could simultaneously catalyze the hybrid copolymerization
via
the combination of PTP and ROP at 25 °C. During copolymerization
HEA not only provided hydroxyl groups to initiate the ROP of
ε
-caprolactone (CL) but also participated in the polymerization as a monomer for PTP. The copolymer composition was approximately equal to the feed ratio
demonstrating the possibility to adjust the polymeric structure by simply changing the monomer feed ratio. This copolymerization reaction provides a simple method for synthesizing degradable functional copolymers from commercially available materials. Hence
it is important not only in polymer chemistry but also in environmental and biomedical engineering.
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