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[期刊论文]

Self-Healing, Recyclable Syndiotactic 1,2-Polybutadiene-Based Thermadapt Shape Memory Polymers with Cold-Programmed Shape Memory Effect

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author:

Xia, Biao (Xia, Biao.) [1] | Li, Zhou (Li, Zhou.) [2] | Lin, Tengfei (Lin, Tengfei.) [3] | Unfold

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EI

Abstract:

Shape memory polymers (SMPs), as a type of smart material, play a significant role in practical applications. Unlike the hot programming of SMPs, the cold programming of SMPs does not require preheating. They can undergo deformation and fix a temporary shape at a specific temperature and can be restored upon heating. SMPs typically require internal cross-linking to 'remember' their permanent shape. However, cross-linked materials cannot be recycled, resulting in resource waste and environmental pollution. Drawing inspiration from dynamic covalent cross-linking technology, for the first time, this paper integrates the cold-programmed shape memory effect into thermadapt SMPs with syndiotactic 1,2-polybutadiene (SPB) as the matrix. To construct a thermadapt SMPs, this paper first obtained epoxidized syndiotactic 1,2-polybutadiene (ESPB) by epoxidizing SPB. Then, ESPB was mixed with carboxy-terminated liquid polybutadiene rubber (CTPB), resulting in the formation of β-hydroxyl ester dynamic bonds within the material. By regulating the internal cross-linking structure, its glass transition temperature (Tg) can be controlled. Furthermore, the molecular chain of the composite has a regular structure that enables stretching-induced crystallization. This enhances the material’s ability to retain its temporary shape during cold programming. This paper provides a feasible and straightforward approach for the preparation of recyclable thermadapt SMPs with cold-programmed shape memory effect and paves the way for the recycling and long-term utilization of SMPs. © 2023 American Chemical Society.

Keyword:

Glass transition Polybutadienes Recycling Self-healing materials Shape-memory polymer

Community:

  • [ 1 ] [Xia, Biao]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Li, Zhou]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Lin, Tengfei]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Gao, Min]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Zhao, Chunlin]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 6 ] [Wu, Xiao]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 7 ] [Lin, Cong]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 8 ] [Wang, Jinyun]College of Physical Science and Technology, Northwestern Polytechnical University, Xi’an; 710072, China

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Source :

ACS Applied Polymer Materials

Year: 2024

Issue: 1

Volume: 6

Page: 102-114

4 . 5 0 0

JCR@2023

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

30 Days PV: 2

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