Cited by 9Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesCrystallization and Solubility Studies

Dependence of Crystallization Behavior of Interacting Telechelic Poly(butylene succinate) Oligomer on Molecular Weight

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Chen, Cong, Zhang, Xue-Wen, Ye, Hai-Mu·2021·Crystals

Abstract

A large spherulite structure deteriorates the mechanical properties of crystalline polymers, and therefore various methods have been explored to increase primary nucleation density. Recently, chain-end modification has been proposed as an effective approach for regulating polymer crystal nucleation. However, the relevant nucleation mechanism still requires investigation. Therefore, in this work, 2-ureido-4[1H]-pyrimidinone (UPy) units, which can form stacks via quadruple hydrogen bonds with each other, are introduced as end groups for the preparation of interacting telechelic poly(butylene succinate) (PBS-UPy) oligomers with different molecular weights (Mns). The crystallization, especially the nucleation behavior of PBS-UPy, is studied in detail by comparing with the corresponding pre-polymer, the hydroxyl-terminal PBS (PBS-OH). The thermal properties of PBS-UPy exhibit similar Mn-dependent tendency to those of PBS-OH, but with weaker total crystallization rate. The spherulite growth rate is significantly reduced, whereas the primary nucleation density is highly promoted, after introducing UPy groups. Further investigation reveals that the mechanism of UPy stacks’ influence on nucleation ability changes from inhibition to promotion with respect to Mn. Even under an inhibition of nucleation ability, the final nucleation density is obviously increased because of a significant decline of the growth rate. In addition, the change in the impact of UPy stacks on nucleation ability is speculated to originate from the memory expression feasibility of ordered conformation in the melt during crystallization.

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Crossref · 10.3390/cryst11121530

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Authors
Chen, C., Zhang, X.-W., & Ye, H.-M.
Affiliations
  • China University of Petroleum, Beijing (CN)
  • Beijing Institute of Space Launch Technology, Beijing 100076, China
Corresponding author
Ye, Hai-Mu
Venue
Crystals
Publisher
MDPI AG
Published
2021-12-08
Volume
11
Issue
12
Pages
1530
ISSN
2073-4352 (ISSN-L)
OpenAlex
W4200241607
Cited by
9
References
29
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2022: 3
FWCI
0.53
Type
journal article
Language
en
Open access
Locations
  • Crystals (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (21674128)
  • Science Foundation of China University of Petroleum, Beijing (2462020YXZZ019)
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 › Materials Chemistry › Crystallization and Solubility Studies
Keywords
poly(butylene succinate), telechelic oligomers, 2-ureido-4[1H]-pyrimidinone, quadruple hydrogen bonding, spherulite growth rate, molecular weight dependence, crystallization kinetics, thermal properties

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