Highly efficient hydrogenative depolymerisation of polycaprolactone to 1,6-hexanediol

Garima Saini, Alejandra Sophia Lozano Perez, Niklas von Wolff and Amit Kumar

RSC Sustainability, 2026, 4, 829
DOI: 10.1039/D5SU00729A

Development of tin oxide catalysts promoting the ring-closing depolymerization of poly(ε-caprolactone) under mild conditions

Tetsu Nakatani, Kohei Mishima, Sho Yamaguchi, Akira Miura, Takato Mitsudome and Tomoo Mizugaki

Chem. Commun., 2026, 62, 5438
DOI: 10.1039/D5CC06942D

An efficient “depolymerization–polymerization” closed-loop recycling strategy for selective degradation of polycaprolactone

Chaoyi Cai, Jiaming Ma, Xiuzhu Liang, Shuyan Zhang, Heng Zhang, Congyun Zhang and Shuidong Zhang

Polym. Chem., 2025, 16, 1568
DOI: 10.1039/D5PY00097A

Ultrafast and selective recycling of poly(p-dioxanone) to monomers by using Brønsted–Lewis acidic ionic liquids as solvents/catalysts

Wei Zhang, Guo-Qiang Tian, Gang Wu, Si-Chong Chen and Yu-Zhong Wang

Green Chem., 2023, 25, 5517
DOI: 10.1039/D3GC00625E

Leveraging the monomer structure for high-performance chemically recyclable semiaromatic polyesters

Hua-Zhong Fan, Xing Yang, Yan-Chen Wu, Qing Cao, Zhongzheng Cai and Jian-Bo Zhu

Polym. Chem., 2023, 14, 747
DOI: 10.1039/D2PY01491B

A cradle-to-cradle approach for successive upcycling of polyethylene to polymer electrolytes to organic acids

Jerald Y. Q. Teo, Ming Yan Tan, Dorsasadat Safanama, Sheau Wei Chien, Yixuan Jiang, Lewis Queh, Tristan T. Y. Tan, Ning Ding, Derrick W. H. Fam and Jason Y. C. Lim

J. Mater. Chem. A, 2024, 12, 20947
DOI: 10.1039/D4TA02178A

Recent progress and applications enabled via electrochemically triggered and controlled chain-growth polymerizations

Boyu Zhao and Paul Wilson

Polym. Chem., 2023, 14, 2000
DOI: 10.1039/D3PY00062A

Fully bio-based monopyrrolidone-containing monomers towards the synthesis of renewable polyesters with high Tg and hydrolyzable closed-loop recycling

Yumeng Zhang, Yang Yu and Ziyi Feng

Green Chem., 2026, 28, 5718
DOI: 10.1039/D5GC05862G

Upcycling poly(ε-caprolactone) into azepane via reductive ammonolysis over a titanium oxide-supported platinum catalyst

Daratu E. K. Putri, Katsumasa Sakoda, Yoshiki Takamoto, Sho Yamaguchi, Takato Mitsudome and Tomoo Mizugaki

Green Chem., 2026
DOI: 10.1039/D6GC00098C

Hybrid Monomer Design Synergizing Property Trade‐offs in Developing Polymers for Circularity and Performance

Changxia Shi, Liam T. Reilly and Eugene Y.‐X. Chen

Angewandte Chemie, 2023, 135
DOI: 10.1002/ange.202301850

Efficiencies of Various in situ Polymerizations of Liquid Electrolytes and the Practical Implications for Quasi Solid‐state Batteries

Peiying Li, Shuya Wang, Jinjin Hao, Xiang Wang, Shu‐Meng Hao, Yuhao Lu, Hong Li, Weidong Zhou and Yuliang Li

Angew Chem Int Ed, 2023, 62
DOI: 10.1002/anie.202309613

Integrated chemo-biotechnological process for upcycling polyesters into new PHB

Anna Faruga, Ewelina Cichoń, Robert Karcz, Joanna Kryściak-Czerwenka, Magdalena Szumera, Justyna Prajsnar and Maciej Guzik

Biotechnol Environ, 2025, 2
DOI: 10.1186/s44314-025-00028-3

Closed‐loop recycling of Nylon‐6 to Caprolactam catalyzed by a green and effective phosphazene base

Haoyue Chen, Rulin Yang, Bingzhe Dong, Hongguang Sun, Guangqiang Xu and Qinggang Wang

Journal of Polymer Science, 2024, 62, 5609
DOI: 10.1002/pol.20240424

Enhanced recyclability of polycaprolactone via precisely defined incorporation of acetal bonds

Marta Socka and Bartłomiej Kost

Polymer Degradation and Stability, 2025, 242, 111635
DOI: 10.1016/j.polymdegradstab.2025.111635

Chemical closed-loop recycling of polymers realized by monomer design

Wuchao Zhao, Jianghua He and Yuetao Zhang

Fundamental Research, 2025, 5, 951
DOI: 10.1016/j.fmre.2024.05.015

Solvent‐Free Chemical Recycling of Polyesters and Polycarbonates by Magnesium‐Based Lewis Acid Catalyst

Wuchao Zhao, Zongpeng Guo, Jianghua He and Yuetao Zhang

Angew Chem Int Ed, 2025, 64
DOI: 10.1002/anie.202420688

Thermodynamically driven closed-loop recyclable bridged polymers: from molecular design to high-performance materials

Xiangyu Miao, Wencan Li and Changxia Shi

Sci. Sin.-Chim, 2026, 56, 830
DOI: 10.1360/SSC-2025-0255

Conversion of Polypropylene to Light Olefins by HMFI Catalysts below Pyrolytic Temperature: Catalytic, Spectroscopic, and Theoretical Studies

Yuriko Ando, Takumi Miyakage, Akihiko Anzai, Mengwen Huang, Abdellah Ait El Fakir, Takashi Toyao, Yuta Nakasaka, Alisa Phuekphong, Makoto Ogawa, Alexander A. Kolganov, Evgeny A. Pidko and Ken-ichi Shimizu

J. Phys. Chem. C, 2025, 129, 1678
DOI: 10.1021/acs.jpcc.4c06925

Reprocessing of Poly(ε‐Caprolactone) Into Tough Hydrogels via Deep Eutectic Solvent Photografting and Thermal Crosslinking

Po‐Yi Lu, Yu‐Chiung Li, Yu Liu, Yi‐Sa Lin, Cheng‐Liang Liu, Yan‐Cheng Lin and Wen‐Chang Chen

Journal of Polymer Science, 2026
DOI: 10.1002/pola.70106

Trash into treasure: Chemical upcycling of poly(ɛ-caprolactone) waste plastic to plasticizer with excellent plasticizing performance and migration resistance

Bingzhe Dong, Jian Guo, Guangqiang Xu, Hongbin Hou, Rulin Yang, Xuanhua Guo and Qinggang Wang

Sustainable Materials and Technologies, 2024, 39, e00823
DOI: 10.1016/j.susmat.2024.e00823

Faster biodegradable and chemically recyclable polycaprolactone with embedded enzymes: Revealing new insights into degradation kinetics

Naba Kumar Kalita, Doli Hazarika, Rajiv K. Srivastava and Minna Hakkarainen

Chemical Engineering Journal, 2024, 496, 153982
DOI: 10.1016/j.cej.2024.153982

Efficiencies of Various in situ Polymerizations of Liquid Electrolytes and the Practical Implications for Quasi Solid‐state Batteries

Peiying Li, Shuya Wang, Jinjin Hao, Xiang Wang, Shu‐Meng Hao, Yuhao Lu, Hong Li, Weidong Zhou and Yuliang Li

Angewandte Chemie, 2023, 135
DOI: 10.1002/ange.202309613

Solvent‐Free Chemical Recycling of Polyesters and Polycarbonates by Magnesium‐Based Lewis Acid Catalyst

Wuchao Zhao, Zongpeng Guo, Jianghua He and Yuetao Zhang

Angewandte Chemie, 2025, 137
DOI: 10.1002/ange.202420688

Hydrocracking of Polypropylene to Light Alkanes over HMFI Zeolite Catalysts under H2

Yuriko Ando, Takumi Miyakage, Alisa Phuekphong, Akihiko Anzai, Mengwen Huang, Abdellah Ait El Fakir, Takashi Toyao, Makoto Ogawa, Alexander A. Kolganov, Evgeny A. Pidko and Ken‐ichi Shimizu

ChemCatChem, 2025, 17
DOI: 10.1002/cctc.202500512

Recyclable and (Bio)degradable Polyesters in a Circular Plastics Economy

Changxia Shi, Ethan C. Quinn, Wilfred T. Diment and Eugene Y.-X. Chen

Chem. Rev., 2024, 124, 4393
DOI: 10.1021/acs.chemrev.3c00848

Directional Depolymerization of Poly(ε‐caprolactone) with High Monomer Selectivity

Rulin Yang, Wei Wei, Guangqiang Xu, Xuanhua Guo and Qinggang Wang

Angewandte Chemie, 2025, 137
DOI: 10.1002/ange.202504819

Simple separation operation improved enzyme-catalyzed ε-caprolactone yield

Wenyan Zhang, Yanchun Zheng and Meidong Lang

Journal of Molecular Structure, 2024, 1295, 136638
DOI: 10.1016/j.molstruc.2023.136638

Ring-Opening Polymerization of Lactones to Prepare Closed-Loop Recyclable Polyesters

Zheng Li, Yong Shen and Zhibo Li

Macromolecules, 2024, 57, 1919
DOI: 10.1021/acs.macromol.3c01912

A comprehensive review on the sustainable approach of fossil-based polymers toward bio-based polymers

Dipankar Roy, Akshay Kumar Dey, Arindam Mandal and Biswajit Kamila

Polym. Bull., 2025, 82, 11625
DOI: 10.1007/s00289-025-06006-9

Chemical Recycling of Commercial Poly(l-lactic acid) to l-Lactide Using a High-Performance Sn(II)/Alcohol Catalyst System

Thomas M. McGuire, Antoine Buchard and Charlotte Williams

J. Am. Chem. Soc., 2023, 145, 19840
DOI: 10.1021/jacs.3c05863

Ultratough Thermoplastic Elastomers Based on Chemically Recyclable Cycloalkyl-Substituted Polyhydroxyalkanoates

Hao-Yi Huang, Min Xie, Si-Qi Wang, Yu-Ting Huang, Yong-Hong Luo, Da-Gang Yu, Zhongzheng Cai and Jian-Bo Zhu

J. Am. Chem. Soc., 2025, 147, 7788
DOI: 10.1021/jacs.4c17703

Circular Polyesters Based on Lactones

Run‐Hua Dong, Jia‐Yin Guo, Hang‐Ming Sun and Tie‐Qi Xu

ChemCatChem, 2025, 17
DOI: 10.1002/cctc.202401319

Sustainable Thermoplastic Elastomers from Commercial Cyclic Esters: One-Pot Synthesis of Poly(l-lactide)-b-(δ-hexalactone-stat-ε-caprolactone)-b-(l-lactide) and Its Chemical Recycling to the Monomers

Giuseppe Gravina, Joseph N. A. Tagoe, Rocco Di Girolamo, Maria Gentile, Luciano Di Maio and Claudio Pellecchia

ACS Polym. Au, 2026, 6, 468
DOI: 10.1021/acspolymersau.5c00172

On the upcycling of PCL to produce building blocks for the development of PCL-PLA copolymers

Giacomo Damonte, Louise Dullaert, Alessandro Pellis, Leonardo Giribaldi and Orietta Monticelli

European Polymer Journal, 2026, 246, 114563
DOI: 10.1016/j.eurpolymj.2026.114563

Fully recyclable and tough thermoplastic elastomers from simple bio-sourced δ-valerolactones

Kai Ma, Hai-Yan An, Jiyun Nam, Liam T. Reilly, Yi-Lin Zhang, Eugene Y.-X. Chen and Tie-Qi Xu

Nat Commun, 2024, 15
DOI: 10.1038/s41467-024-52229-1

Chemical Recycling of Polyesters and Polycarbonates: Why Is Zinc(II) Such an Effective Depolymerization Catalyst?

Thomas M. McGuire, Antoine Buchard and Charlotte K. Williams

J. Am. Chem. Soc., 2025
DOI: 10.1021/jacs.5c16346

Comparative Study of Melt and Azeotropic Polymerization on the Structural Evolution and Properties of Quasi-Alternating Polyester Amides

Kan Cheng, Tao Liu, Fangfang Niu, Simeng Gao, Shuohan Huang, Yumin Xia, Xueli Wang, Jianyong Yu and Yong He

Macromolecules, 2025, 58, 8387
DOI: 10.1021/acs.macromol.5c01138

Insights into substitution strategy towards thermodynamic and property regulation of chemically recyclable polymers

Yi-Min Tu, Fu-Long Gong, Yan-Chen Wu, Zhongzheng Cai and Jian-Bo Zhu

Nat Commun, 2023, 14
DOI: 10.1038/s41467-023-38916-5

Uniform Polyester-Based Nanoparticles Assembled via Living Crystallization-Driven Self-Assembly as Friction-Reducing Agents in Engine Oil

Cinzia Clamor, Simon D. Dale, James Beament, Elizabeth Mould, Rachel K. O’Reilly and Andrew P. Dove

Macromolecules, 2023, 56, 9821
DOI: 10.1021/acs.macromol.3c01288

Chemical Recycling of Polycaprolactones via Reactive Melt Processing

Anubhav Sarmah, Aristotle J. Zervoudakis, Michaela R. Pfau-Cloud, Marc A. Hillmyer and Christopher J. Ellison

ACS Appl. Polym. Mater., 2025, 7, 1763
DOI: 10.1021/acsapm.4c03575

Stereoselective depolymerization of chiral polyesters

Rulin Yang, Guangqiang Xu, Xuanhua Guo, Wei Wei, Yanju Jia and Qinggang Wang

Nat Commun, 2026
DOI: 10.1038/s41467-026-70164-1

Closed-Loop Chemical Recycling of a Biobased Poly(oxanorbornene-fused γ-butyrolactone)

Eva Harsevoort, Răzvan C. Cioc, Martin Lutz, Arnaud Thevenon and Pieter C. A. Bruijnincx

J. Am. Chem. Soc., 2024, 146, 34628
DOI: 10.1021/jacs.4c12678

Application of Biopolymers as Sustainable Cladding Materials: A Review

Touha Nazrun, Md Kamrul Hassan, Md Delwar Hossain, Bulbul Ahmed, Md Rayhan Hasnat and Swapan Saha

Sustainability, 2023, 16, 27
DOI: 10.3390/su16010027

One-pot solvent-free recycling of mixed biodegradable plastics to useable polymers with trade-off mechanical properties

Zi-Xuan Luo, Guo-Qiang Tian, Si-Chong Chen, Gang Wu and Yu-Zhong Wang

Polymer, 2025, 332, 128577
DOI: 10.1016/j.polymer.2025.128577

Directional Depolymerization of Poly(ε‐caprolactone) with High Monomer Selectivity

Rulin Yang, Wei Wei, Guangqiang Xu, Xuanhua Guo and Qinggang Wang

Angew Chem Int Ed, 2025, 64
DOI: 10.1002/anie.202504819

Ring-Opening Copolymerizations of a CO2-Derived δ-Valerolactone with ε-Caprolactone and l-Lactide

Ryan J. Anderson, Rachel L. Fine, Rachel M. Rapagnani and Ian A. Tonks

Macromolecules, 2024, 57, 6248
DOI: 10.1021/acs.macromol.4c00770

Ring-closing depolymerization of polyglycolide to glycolide through a synergistic transesterification strategy

Pei Zhang, Rulin Yang, Yuzhu Wang, Hongguang Sun, Guangqiang Xu and Qinggang Wang

Polymer, 2025, 317, 127957
DOI: 10.1016/j.polymer.2024.127957

Chemical upcycling of poly(lactide) plastic waste to lactate ester, lactide and new poly(lactide) under Mg-catalysis condition

Xianyue Zhou, Qiuyang Liu, Guangqiang Xu, Rulin Yang, Hongguang Sun and Qinggang Wang

Chinese Chemical Letters, 2023, 34, 108158
DOI: 10.1016/j.cclet.2023.108158

Depolymerization within a Circular Plastics System

Robbie A. Clark and Michael P. Shaver

Chem. Rev., 2024, 124, 2617
DOI: 10.1021/acs.chemrev.3c00739

Hybrid Monomer Design Synergizing Property Trade‐offs in Developing Polymers for Circularity and Performance

Changxia Shi, Liam T. Reilly and Eugene Y.‐X. Chen

Angew Chem Int Ed, 2023, 62
DOI: 10.1002/anie.202301850

Solventless and low-temperature ring-opening polymerization using deep eutectic solvents of ε-caprolactone and their depolymerization cycles for biodegradable polyesters

Puracheth Rithchumpon, Wanich Limwanich, Kraikrit Utama, Nathaporn Cheechana, Natthapol Akkravijitrkul, Padchanee Sangthong, Winita Punyodom and Puttinan Meepowpan

Journal of Catalysis, 2025, 451, 116400
DOI: 10.1016/j.jcat.2025.116400