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Grant support

This work is part of the R&D projects PID2020-115102RB-C21 and PID2020-115102RB-C22 funded by MCNI/AEI/10.13039/501100011033 we acknowledge these grants and to the Generalitat de Catalunya (2017-SGR-77 and BASE3D).

Analysis of institutional authors

Roig, AAuthorDe La Flor, SCorresponding AuthorSerra, ACorresponding Author

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Article

Synthesis and characterization of new bio-based poly(acylhydrazone) vanillin vitrimers

Publicated to:Polymer Chemistry. 13 (11): 1510-1519 - 2022-02-17 13(11), DOI: 10.1039/d1py01694f

Authors: Roig, Adria; Petrauskaite, Aina; Ramis, Xavier; De la Flor, Silvia; Serra, Angels

Affiliations

Univ Politecn Cataluna, Thermodynam Lab, ETSEIB, Av Diagonal, E-08028 Barcelona, Spain - Author
Univ Rovira & Virgili, Dept Analyt & Organ Chem, C Marcelli Domingo 1, E-43007 Tarragona, Spain - Author
Univ Rovira & Virgili, Dept Mech Engn, Av Paisos Catalans 26, E-43007 Tarragona, Spain - Author

Abstract

New acylhydrazone vitrimeric-type materials have been studied. These materials can be efficiently relaxed, without the addition of an external catalyst, through an exchange process that has been confirmed as imine metathesis, which differs from the previously reported transimination process in linear polymers. This is the first article that develops vitrimers with high T-g and fast relaxation based on poly(acylhydrazone)s. These materials have been prepared by condensing stoichiometric amounts of glycidyl vanillin and aliphatic dihydrazides of different chain lengths. The curing reaction takes advantage of the different reactivity of formyl and glycidyl groups and proceeds in two sequential steps: a first condensation of the formyl group of vanillin with dihydrazide monomers at low temperature followed by reaction of the remaining hydrazides with the epoxide, which requires temperatures above 150 degrees C. The complete disappearance of the initial reactive groups has been confirmed by FTIR spectroscopy. The thermomechanical characteristics have been evaluated by DMTA, obtaining T(g)s above 100 degrees C for the materials prepared, which present excellent vitrimeric features with very short relaxation times. Using model compounds, we were able to demonstrate that imine metathesis is responsible for the exchange process. The thermal stability of these materials has been rated by TGA. Poly(acylhydrazone) materials showed good recycling and self-healing abilities and could be hydrolyzed in an acidic medium.

Keywords

DynamersEpoxyExchangeHydrogelsPolymersShape-memory

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Polymer Chemistry due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position 18/86, thus managing to position itself as a Q1 (Primer Cuartil), in the category Polymer Science.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.99. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 2 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 5.49 (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-17, the following number of citations:

  • WoS: 23
  • Scopus: 25
  • OpenCitations: 23

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-17:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 34 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Roig De Arespacochaga, Anna) and Last Author (Serra Albet, Maria Angels).

the authors responsible for correspondence tasks have been De la Flor Lopez, Silvia and Serra Albet, Maria Angels.