Thermoset poly(2-methoxyethyl acrylate)-based polyurethane synthesized by RAFT polymerization and polyaddition

Shunsuke Tazawa; Tomoki Maeda; Atsushi Hotta

doi:10.1016/j.matchemphys.2021.125649

Thermoset poly(2-methoxyethyl acrylate)-based polyurethane synthesized by RAFT polymerization and polyaddition

Shunsuke Tazawa, Tomoki Maeda, Atsushi Hotta

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A solid poly(2-methoxyethyl acrylate) (PMEA)-based polyurethane (PU) has been synthesized through reversible addition−fragmentation chain transfer (RAFT) polymerization followed by polyaddition. PMEA with four hydroxyl-groups (PMEA-(OH)₄) synthesized using RAFT reagents with 4 hydroxyl groups works as an effective prepolymer and crosslinker. The thermoset PMEA-based PU can be obtained by mixing PMEA-(OH)₄ and diisocyanate without additional agents for the synthesis. The temperature-independent mechanical property of the thermoset PMEA-based PU due to the chemical crosslinking points is confirmed by dynamic mechanical analysis (DMA) at temperatures ranging from 25 °C to 110 °C. The mechanical property at room temperature is also evaluated by tensile testing: The Young's modulus of PMEA-based PU increased from 454 ± 31 kPa to 574 ± 54 kPa by decreasing M_n of the PMEA prepolymer from 14,000 to 7,600. It is concluded that our synthesized PMEA-based PU exhibits sufficiently elastomeric characteristics as compared with conventional crosslinked PMEA, which may be used as a durable and more stretchable biomedical material.

Original language	English
Article number	125649
Journal	Materials Chemistry and Physics
Volume	278
DOIs	https://doi.org/10.1016/j.matchemphys.2021.125649
Publication status	Published - 2022 Feb 15

Keywords

Poly(2-methoxyethyl acrylate)
Polyurethane
RAFT polymerization
Thermoset

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1016/j.matchemphys.2021.125649

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@article{74f8f79cf90f4acd97e8e8d300153adc,

title = "Thermoset poly(2-methoxyethyl acrylate)-based polyurethane synthesized by RAFT polymerization and polyaddition",

abstract = "A solid poly(2-methoxyethyl acrylate) (PMEA)-based polyurethane (PU) has been synthesized through reversible addition−fragmentation chain transfer (RAFT) polymerization followed by polyaddition. PMEA with four hydroxyl-groups (PMEA-(OH)4) synthesized using RAFT reagents with 4 hydroxyl groups works as an effective prepolymer and crosslinker. The thermoset PMEA-based PU can be obtained by mixing PMEA-(OH)4 and diisocyanate without additional agents for the synthesis. The temperature-independent mechanical property of the thermoset PMEA-based PU due to the chemical crosslinking points is confirmed by dynamic mechanical analysis (DMA) at temperatures ranging from 25 °C to 110 °C. The mechanical property at room temperature is also evaluated by tensile testing: The Young's modulus of PMEA-based PU increased from 454 ± 31 kPa to 574 ± 54 kPa by decreasing Mn of the PMEA prepolymer from 14,000 to 7,600. It is concluded that our synthesized PMEA-based PU exhibits sufficiently elastomeric characteristics as compared with conventional crosslinked PMEA, which may be used as a durable and more stretchable biomedical material.",

keywords = "Poly(2-methoxyethyl acrylate), Polyurethane, RAFT polymerization, Thermoset",

author = "Shunsuke Tazawa and Tomoki Maeda and Atsushi Hotta",

note = "Funding Information: This work was supported in part by Grant-in-Aid for Scientific Research (A) (No. 19H00831 to A.H.), in part by Grant-in-Aid for Challenging Exploratory Research (No. 19K22067 to A.H.), in part by Grant-in-Aid for Scientific Research (B) (No. 20H02023 to T.M.), and in part by Grant-in-Aid for JSPS Fellows (No. 19J12154 to S.T. ) from the Japan Society for the Promotion of Science (JSPS: “KAKENHI”). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2022",

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doi = "10.1016/j.matchemphys.2021.125649",

language = "English",

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T1 - Thermoset poly(2-methoxyethyl acrylate)-based polyurethane synthesized by RAFT polymerization and polyaddition

AU - Tazawa, Shunsuke

AU - Maeda, Tomoki

AU - Hotta, Atsushi

N1 - Funding Information: This work was supported in part by Grant-in-Aid for Scientific Research (A) (No. 19H00831 to A.H.), in part by Grant-in-Aid for Challenging Exploratory Research (No. 19K22067 to A.H.), in part by Grant-in-Aid for Scientific Research (B) (No. 20H02023 to T.M.), and in part by Grant-in-Aid for JSPS Fellows (No. 19J12154 to S.T. ) from the Japan Society for the Promotion of Science (JSPS: “KAKENHI”). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2022/2/15

Y1 - 2022/2/15

N2 - A solid poly(2-methoxyethyl acrylate) (PMEA)-based polyurethane (PU) has been synthesized through reversible addition−fragmentation chain transfer (RAFT) polymerization followed by polyaddition. PMEA with four hydroxyl-groups (PMEA-(OH)4) synthesized using RAFT reagents with 4 hydroxyl groups works as an effective prepolymer and crosslinker. The thermoset PMEA-based PU can be obtained by mixing PMEA-(OH)4 and diisocyanate without additional agents for the synthesis. The temperature-independent mechanical property of the thermoset PMEA-based PU due to the chemical crosslinking points is confirmed by dynamic mechanical analysis (DMA) at temperatures ranging from 25 °C to 110 °C. The mechanical property at room temperature is also evaluated by tensile testing: The Young's modulus of PMEA-based PU increased from 454 ± 31 kPa to 574 ± 54 kPa by decreasing Mn of the PMEA prepolymer from 14,000 to 7,600. It is concluded that our synthesized PMEA-based PU exhibits sufficiently elastomeric characteristics as compared with conventional crosslinked PMEA, which may be used as a durable and more stretchable biomedical material.

AB - A solid poly(2-methoxyethyl acrylate) (PMEA)-based polyurethane (PU) has been synthesized through reversible addition−fragmentation chain transfer (RAFT) polymerization followed by polyaddition. PMEA with four hydroxyl-groups (PMEA-(OH)4) synthesized using RAFT reagents with 4 hydroxyl groups works as an effective prepolymer and crosslinker. The thermoset PMEA-based PU can be obtained by mixing PMEA-(OH)4 and diisocyanate without additional agents for the synthesis. The temperature-independent mechanical property of the thermoset PMEA-based PU due to the chemical crosslinking points is confirmed by dynamic mechanical analysis (DMA) at temperatures ranging from 25 °C to 110 °C. The mechanical property at room temperature is also evaluated by tensile testing: The Young's modulus of PMEA-based PU increased from 454 ± 31 kPa to 574 ± 54 kPa by decreasing Mn of the PMEA prepolymer from 14,000 to 7,600. It is concluded that our synthesized PMEA-based PU exhibits sufficiently elastomeric characteristics as compared with conventional crosslinked PMEA, which may be used as a durable and more stretchable biomedical material.

KW - Poly(2-methoxyethyl acrylate)

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KW - RAFT polymerization

KW - Thermoset

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Thermoset poly(2-methoxyethyl acrylate)-based polyurethane synthesized by RAFT polymerization and polyaddition

Abstract

Keywords

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