Cited by 36Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesAdvanced Cellulose Research Studies

Nucleation roles of cellulose nanocrystals and chitin nanocrystals in poly (ε-caprolactone) nanocomposites

Li, Jia, Wu, Defeng·2022·International Journal of Biological Macromolecules

Abstract

Using polysaccharide nanocrystals such as chitin nanocrystals (ChNCs) or cellulose nanocrystals (CNCs) as fillers of biodegradable aliphatic polyesters is an attractive approach of fabricating completely biodegradable nanocomposites. Most aliphatic polyesters are semi-crystalline and hence to reveal the effect of nanocrystals on their crystallization behaviors is key to regulate final properties of the nanocomposites. In this work, poly(ε-caprolactone) (PCL) nanocomposites filled with ChNCs and CNCs were prepared as templates for the study. It is intriguing that these two nanocrystals play completely different roles towards crystallization of PCL. CNCs are nucleating agent, promoting nucleation of PCL and accelerating subsequent crystal growth; while ChNCs are anti-nucleation agent, retarding nucleation of PCL and depressing whole process of PCL crystallization. This difference arises from different particle-polymer affinities in the nanocomposites, which is confirmed by the thermodynamic and rheological tests. This work provides valuable information around tuning the thermal properties of polysaccharide nanocrystals filled polymeric nanocomposites.

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Crossref · 10.1016/j.ijbiomac.2022.02.123

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Authors
Li, J., & Wu, D.
Affiliations
Yangzhou University (CN)
Corresponding author
Wu, Defeng
Venue
International Journal of Biological Macromolecules
Publisher
Elsevier BV
Published
2022-04
Volume
205
Pages
587-594
ISSN
0141-8130 (ISSN-L)
OpenAlex
W4212778139
Cited by
36
References
64
Citations by year
2026: 8 · 2025: 9 · 2024: 6 · 2023: 11 · 2022: 2
FWCI
2.25
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Biological Macromolecules (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
Keywords
polycaprolactone, cellulose nanocrystals, chitin nanocrystals, nucleation, crystallization behavior, biodegradable nanocomposites, aliphatic polyesters, thermal properties, rheology
MeSH terms
Cellulose, Chitin, Polyesters, Nanoparticles, Nanocomposites

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