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Aging, Degradation, and Lifetime Engineering of Advanced Polymeric Materials

A Special Issue of Polymers (ISSN 2073-4360) belonging to the section "Polymer Processing and Engineering".

Deadline for manuscript submissions: 20 November 2026 | Viewed by 1032

Editors


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Guest Editor
Department of Chemical Engineering, Tsinghua University, Beijing, China
Interests: polymer aging; lifetime prediction; stability regulation
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Materials Science and Engineering, North University of China, Taiyuan, China
Interests: thermoset resins; composites; polymers

Special Issue Information

Dear Colleagues,

Advanced polymeric materials are at the forefront of innovation in aerospace, electronics, energy, transportation, coatings, and many other high-performance fields. Nevertheless, their long-term reliability remains a critical challenge, as exposure to heat, oxygen, moisture, light, electric fields, mechanical loading, and harsh chemical environments can progressively induce aging, degradation, and ultimately failure. Gaining deeper insight into these processes is essential not only for improving durability and service performance but also for enabling more sustainable material design, lifetime management, and end-of-life utilization.

This Special Issue, “Aging, Degradation, and Lifetime Engineering of Advanced Polymeric Materials,” seeks to bring together cutting-edge contributions that advance our understanding of how advanced polymer systems evolve under service conditions and how their lifetime can be predicted, controlled, and extended. We welcome original research articles, communications, and reviews addressing fundamental degradation mechanisms, structure–property relationships during aging, advanced characterization and monitoring methods, lifetime prediction and failure analysis, anti-aging and stabilization strategies, as well as emerging concepts in recyclable, reprocessable, and sustainable polymer materials.

By gathering insights from both fundamental research and engineering practice, this Special Issue aims to provide a vibrant platform for researchers working at the intersection of polymer science, degradation chemistry, durability evaluation, and lifetime engineering. We warmly invite contributions that will help shape the next generation of durable, reliable, and sustainable polymeric materials.

Prof. Dr. Rui Yang
Prof. Dr. Zhi Wang
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aging
  • degradation
  • lifetime engineering
  • advanced polymeric materials

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Published Papers (2 papers)

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Research

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16 pages, 6100 KB  
Article
Photo-Initiated Main-Chain Scission of Poly(methyl methacrylate) in Solution at Room Temperature
by Xiao Wang, Xiangze Meng, Zhiping Xu and Rui Yang
Polymers 2026, 18(16), 2012; https://doi.org/10.3390/polym18162012 - 18 Aug 2026
Viewed by 477
Abstract
Poly(methyl methacrylate) (PMMA), as a widely used transparent polymer material, is highly stable because of its all-carbon backbone, which makes its chain cleavage under mild conditions challenging. In this work, we report a photo-initiated solution reaction that induces main-chain scission of PMMA at [...] Read more.
Poly(methyl methacrylate) (PMMA), as a widely used transparent polymer material, is highly stable because of its all-carbon backbone, which makes its chain cleavage under mild conditions challenging. In this work, we report a photo-initiated solution reaction that induces main-chain scission of PMMA at room temperature, leading mainly to molecular-weight reduction and oligomer formation. This method requires no catalysts and does not need pre-introduction of specific groups. The degradation mechanism proposed according to DFT calculations involves the photolysis of trichloromethane to produce phosgene, which then reacts with ester groups on the side chains of PMMA to form acyl chloride groups. These acyl chloride groups further cleave under light or heat, generating radicals that trigger β-scission of the PMMA main chain through a side-chain-initiated pathway. The degradation mechanism was demonstrated experimentally, and the extent of chain scission can be regulated by temperature, O2 and an alcohol stabilizer. Full article
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Review

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42 pages, 19550 KB  
Review
Towards Sustainable Utilization of Rejuvenated Bitumen: A Review with Emphasis on Secondary Aging, Aging Resistance, and Multiple Rejuvenation
by Hongbin Zhu, Naisheng Guo, Yuanyuan Li, Shisong Ren, Fu Wang, Jun Zhang, Zhi Zheng, Hang Su, Zenggang Zhao and Ke Zhang
Polymers 2026, 18(17), 2103; https://doi.org/10.3390/polym18172103 - 29 Aug 2026
Cited by 2 | Viewed by 314
Abstract
To further advance the recycling of pavement waste, the secondary-aging and multiple-rejuvenation processes of bitumen are first systematically reviewed. Beginning with primary-aging mechanisms, rejuvenator classification and physicochemical properties are summarized to aid elucidation of primary rejuvenation. Secondary-aging evolution of technical and physicochemical properties [...] Read more.
To further advance the recycling of pavement waste, the secondary-aging and multiple-rejuvenation processes of bitumen are first systematically reviewed. Beginning with primary-aging mechanisms, rejuvenator classification and physicochemical properties are summarized to aid elucidation of primary rejuvenation. Secondary-aging evolution of technical and physicochemical properties of rejuvenated bitumen (RB) is critically analyzed. The aging resistance of virgin bitumen and RB is quantitatively compared via extensive literature data. The background and progress of multiple rejuvenation cycles are also outlined. The existing literature shows that identical aging modes can induce distinct component variations, while degradation patterns remain consistent across modes. Among petroleum-based rejuvenators, those with aromatic content exceeding 60% are widely used, and the polar carboxyl groups of tall oil account for their high efficacy. RB aging resistance strongly correlates with both rejuvenator type and dosage. Most RB outperforms virgin bitumen in aging resistance, and post-aging variation amplitudes of softening point and high-temperature failure temperature are approximately 20% for both, while those of penetration and viscosity range from 60% to 120%. Multiple aging–rejuvenation trends resemble those of primary cycles, with progressive macro- and micro-property deterioration as cycles increase. Future work includes developing high-performance bitumen from aged feedstock, establishing molecular screening systems for fatty acid bio-oil rejuvenators, and advancing multiple rejuvenation via molecular dynamics. Full article
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