| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Construction of Sulfonated Polystyrene Catalyst and Its Influence Mechanism on Polyester Hydrolysis |
| FEI Hong1, LIU Gaozhe1, HAO Meng1, GUAN Jun3, CHEN Long1,2,*, SUN Junfen1,2,*
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1 School of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
2 State Key Laboratory of Advanced Fiber Materials, Donghua University, Shanghai 201620, China;
3 Zhejiang Jia Ren New Materials Co., Ltd., Shaoxing 312000, Zhejiang, China |
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Abstract In this study, styrene (St) as monomer and divinylbenzene (DVB) as crosslinker were used as crosslinkers, and gel type (PSS) and macroporous (PSS-macro) sulfonated polystyrene heterogeneous acid catalysts were successfully prepared by suspension polymerization by adjusting the proportion of crosslinkers, and the catalytic mechanism of hydrolysis of polyethylene terephthalate (PET) fibers was studied by their structural properties, and the morphological characteristics and thermal stability of gel catalysts were systematically analyzed by FTIR, SEM, TGA and other characterization methods. The hydrolysis and depolymerization process parameters and catalyst recycling performance under the action of multiple factors were explored, and an efficient hydrolysis path of PET fiber was established. The results showed that the gel-type PSS catalyst with smooth and regular structure showed better catalytic activity, and the PSS-D40% catalyst could achieve complete depolymerization of PET fibers with the best hydrolysis efficiency, the yield of terephthalic acid(TPA) was 96.9±0.5%, and the purity was 98.6% under the reaction conditions of T=200 ℃, t=120 min, and the catalyst dosage was 4%, H2O∶PET=10 ∶1 (mass ratio). The catalyst has both high catalytic activity and recyclability, which provides a new strategy for the green and high-value recycling of waste PET fiber.
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Published: 25 March 2026
Online: 2026-04-03
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1 Thompson R C, Olsen Y, Mitchell R P, et al. Science, 2004, 304(5672), 838.
2 Jin Y F, Qiu J R, Zhang L Q, Chinese Journal of Biotechnology, 2023, 39(11), 4445 (in Chinese).
金玉凤, 邱佳容, 张良清, 等. 生物工程学报, 2023, 39(11), 4445.
3 Li Y R, Hu W W, Liang Y, et al. Textile Testing and Standard, 2024, 10(6), 54 (in Chinese).
李翼然, 胡伟伟, 梁燕, 等. 纺织检测与标准, 2024, 10(6), 54.
4 Pereira P, Savage P E, Pester C W. Green Chemistry, 2024, 26(4), 1964.
5 Yu X A, Liu G Z Zuo W W, et al. China Synthetic Fiber Industry, 2024, 47(4), 8 (in Chinese).
于翔安, 刘高喆, 左伟伟, 等. 合成纤维工业, 2024, 47(4), 8.
6 Kawai F. Catalysts, 2021, 11(2), 206.
7 Yoshioka T, Okayama N, Okuwaki A. Industrial & Engineering Chemistry Research, 1998, 37(2), 336.
8 Yoshioka T, Motoki T, Okuwaki A. Industrial & Engineering Chemistry Research, 2001, 40(1), 75.
9 Mahler A S H, Lemming M, Jaime-Azuara A, et al. Waste Management, 2025, 192, 12.
10 Scheirs J. Technology and Applications, 1998.
11 Bee S L, Hamid Z A A, Mariatti M, et al. Polymer Reviews, 2018, 58(3), 495.
12 Yang W, Liu R, Li C, et al. Waste Management, 2021, 135, 267.
13 Kang M J, Yu H J, Jegal J, et al. Chemical Engineering Journal, 2020, 398, 125655.
14 Paszun D, Spychaj T. Industrial & Engineering Chemistry Research, 1997, 36(4), 1373.
15 Li Y N, He W J, Yu F P, et al. Chinese Journal of Applied Chemistry. 2015, 32(12), 1343 (in Chinese).
李亚男, 何文军, 俞峰萍, 等. 应用化学, 2015, 32(12), 1343.
16 Yu F, Cai H, He W, et al. Journal of Applied Polymer Science, 2010, 115(5), 2946.
17 Liu H, Liu X, Xiang W Y, et al. Journal of Tianjin University(Science and Technology). 2023, 56(12), 1227 (in Chinese).
刘辉, 刘鑫, 项文雨, 等. 天津大学学报(自然科学与工程技术版), 2023, 56(12), 1227.
18 Bao J M, Yan Z Y, Li Y X. Materials Reports. 2018, 32(17), 3060 (in Chinese).
包建民, 闫志英, 李优鑫. 材料导报, 2018, 32(17), 3060.
19 Yan H J, Liu A K, Wang S, et al. Journal of Functional Polymers, 2023, 36(5), 499 (in Chinese).
闫慧君, 刘安康, 王爽, 等. 功能高分子学报, 2023, 36(5), 499. |
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2026, Vol. 40 
