Citation: Wang Zeming, Li Minhao, Zhou Hongyong, Wang Jiaxi. Preparation of Side Chain PEG Based Polymer and Its Catalytic Performance for Esterification[J]. Chemistry, ;2019, 82(6): 542-548. shu

Preparation of Side Chain PEG Based Polymer and Its Catalytic Performance for Esterification

1.
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130
2.
Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving, Hebei University of Technology, Tianjin 300130

Corresponding author: Wang Jiaxi, wangjiaxi@hebut.edu.cn
Received Date: 10 January 2019
Accepted Date: 20 February 2019

Figures(7)

Polyethylene glycol vinylbenzyl ether (PEG-VBE) and polyethylene glycol di(vinylbenzyl) ether (PEG-DVBE) are important polymerizable PEG-derivatives, which have good applications in the fields of catalyst support and functional polymers. In this paper, a series of PEG-VBE and PEG-DVBE were prepared by reaction of vinyl benzyl chloride (VBC) with ethylene glycol, diethylene glycol, triethylene glycol, PEG₄₀₀, PEG₆₀₀, and PEG₁₅₀₀ using KOH as base. The conversion rate of VBC is more than 96%, and the separation yield of PEG-VBE is in range of 32%~93%. The products were characterized by ¹H NMR、ESI-HRMS and FT-IR. Using PEG based polymer as microreactor, the esterification of benzoic acid and methanol was investigated. The combination of PEG based polymer with sulfuric acid has very good catalytic activity on the esterification. At the optimized condition, the conversion of benzoic acid is up to 99%. The catalytic activity is barely decreased after five cycles.
- Polyethylene glycol,
- Vinylbenzyl chloride,
- Etherification,
- Micro emulsion,
- Esterification
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沈阳化工大学材料科学与工程学院沈阳 110142