Journal Article

PUBDB-2026-01848

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Study of Structural and Multifunctional Characteristics in Dynamic Transesterification-Aided Epoxy Carbon Nanocomposites

Babu, V.Extern* ; Halsi, P. ; Gupta, A.Extern* ; Rana, S.Extern* ; Koyiloth Vayalil, S. (Corresponding author)Extern*DESY*

2026
MDPI Basel

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Please use a persistent id in citations: doi:10.3390/polym18192318  doi:10.3204/PUBDB-2026-01848

Abstract: Vitrimeric nanocomposites (VNCs) are futuristic materials exhibiting multifunctional properties with sustainable capabilities. However, achieving filler-derived functionalities harmoniously with their dynamic characteristics is highly momentous in VNCs. Herein, the vitrimeric thiol-epoxy matrix incorporating tyre-waste-derived carbon nanosheets (CNS) is shown as a versatile nanocomposite integrating flexibility, high strength, tunable electrical conductivity, together with self-healing and shape-memory characteristics. The transesterification-aided bond exchange reactions enabled vitrimeric features, while the CNS endorsed electrical transport, mechanical, thermal, and dimensional stabilities. Primary investigations, together with ultra-small angle X-ray scattering, explored the structural integrity of dispersed CNS. The hierarchically dispersed nanofillers provided efficient conductive pathways, offering a systematically varying electrical conductivity with filler concentration. They exhibited excellent dimensional stability even after multiple healing cycles, along with an exceptional stretchability up to 276%. Compared with the pristine matrix, a threefold increase in flexural modulus has been observed at the maximum filler loading (15 wt%). They exhibited a commendable balance between the rigidity offered by CNS and excellent matrix flexibility, showing their versatility. As a result of accelerated thermoresponsive bond-exchange reactions, a complete shape recovery with an impressive healing efficiency of 99.6% is observed. This study not only provides a detailed elucidation of a multifunctional system but also offers practical insights for developing highly efficient epoxy-based vitrimers suitable for a wide range of applications.

Note: Title has changed to Study of Structural and Multifunctional Characteristics in Dynamic Transesterification-Aided Epoxy Carbon Nanocomposite

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20240168 (I-20240168) (I-20240168)
4. FS-Proposal: I-20240598 (I-20240598) (I-20240598)
5. INDIA-DESY - INDIA-DESY Collaboration (2020_Join2-INDIA-DESY) (2020_Join2-INDIA-DESY)

Experiment(s):

1. PETRA Beamline P03 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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