Citation: Hong-Jun Yang, Chen-Qiong Chai, Yong-Kang Zuo, Jin-Feng Huang, Yi-Ye Song, Li Jiang, Wen-Yan Huang, Qi-Min Jiang, Xiao-Qiang Xue, Bi-Biao Jiang. Hybrid Copolymerization via the Combination of Proton Transfer and Ring-opening Polymerization[J]. Chinese Journal of Polymer Science, ;2020, 38(3): 231-239. doi: 10.1007/s10118-020-2341-x shu

Hybrid Copolymerization via the Combination of Proton Transfer and Ring-opening Polymerization

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

Corresponding author: Hong-Jun Yang, hjyang0519@cczu.edu.cn Wen-Yan Huang, ellahwy@cczu.edu.cn Bi-Biao Jiang, jiangbibiao@cczu.edu.cn
Received Date: 26 June 2019
Revised Date: 12 August 2019
Accepted Date: 14 August 2019
Available Online: 11 October 2019

Phosphazene base, t-BuP₂, 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-BuP₂ 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-BuP₂ 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.
- Hybrid copolymerization,
- Proton transfer,
- Ring-opening polymerization,
- 2-Hydroxyethyl acrylate
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