Volume 139, Issue 41 e52986
RESEARCH ARTICLE

Tunable shape memory property polyurethane with high glass transition temperature composed of polycarbonate diols

Hsu-I Mao

Hsu-I Mao

Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan

Contribution: Conceptualization (equal), Data curation (lead), Formal analysis (equal), Methodology (equal), Writing - original draft (lead)

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Chin-Wen Chen

Corresponding Author

Chin-Wen Chen

Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan

Correspondence

Chin-Wen Chen and Syang-Peng Rwei, Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei 10608, Taiwan.

Email: [email protected] and [email protected]

Contribution: Conceptualization (lead), Formal analysis (lead), Funding acquisition (lead), ​Investigation (lead), Supervision (lead), Validation (lead), Writing - review & editing (lead)

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Li-Yin Guo

Li-Yin Guo

Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan

Contribution: Conceptualization (equal), Data curation (lead), Formal analysis (equal), Methodology (equal), Visualization (equal)

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Syang-Peng Rwei

Corresponding Author

Syang-Peng Rwei

Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei, Taiwan

Correspondence

Chin-Wen Chen and Syang-Peng Rwei, Department of Molecular Science and Engineering, Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei 10608, Taiwan.

Email: [email protected] and [email protected]

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First published: 05 August 2022
Citations: 5

Funding information: Taiwan Ministry of Science and Technology (MOST, Grant/Award Numbers: 111-2222-E-027-005, 110-2634-F-027-001

Abstract

A series of polyurethane (PU) copolymers was synthesized by 4,4-Methylene diphenyl diisocyanate (MDI) with different polyols of polyether, polyether carbonate (PEC), and polycarbonate with the same molecular weight via a one-step copolymerization process. The synthesized PU containing the ether carbonate groups exhibited a relatively higher glass transition temperature (Tg) above 45°C; in comparison, a value of 12.4°C for the polycarbonate sample and −22°C for the polyether sample was observed. The film made of PEC samples produced by solvent indicated an increment of Tg from 14.6 to 59.6°C after annealing for 6 h, which might be due to the rearrangement of chain structure, which led to an assembling of carbonate groups and resulted in a hindrance of chain mobility. For shape memory examination of the PU copolymers, all samples showed remarkable ability as recovery rate above 91% after 3 cycles test. PEC-type PU polymers reveal potential high-temperature micro shape memory material applications.

CONFLICT OF INTEREST

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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