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Title: Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity

Abstract

Abstract Polysiloxane elastomers represent a widely utilized soft material with excellent rubber‐like elasticity, biocompatibility, and biodurability; however, there is a lack of an effective and straightforward approach to manipulate the material's viscoelastic response. A facile hydrosilylation reaction is employed to integrate ureidopyrimidinone hydrogen‐bonding side‐groups into linear and crosslinked siloxane polymers to achieve biocompatible soft materials with a highly tunable viscoelastic relaxation timescale. Stacking of H‐bonded moieties is avoided in the designed macromolecular architectures with tight, side‐groups substituents. The obtained siloxane network features the presence of both covalent crosslinks and truly thermoreversible crosslinks, and can be formulated across a broad material design space including elastic solids, recoverable viscoelastic solids, and viscous liquids. The elastomers exhibit unique temperature‐dependent shape‐memory capability and show good cytocompatibility. Importantly, a deformed material's shape‐recovery occurs regardless of external triggering, and through manipulation of network formulations, the shape‐recovery timescale can be easily tuned from seconds to days, opening new possibilities for biomedical, healthcare, and soft material applications.

Authors:
 [1];  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]
  1. Department of Chemical Engineering University of Rochester 4311 Wegmans Hall Rochester NY 14627 USA
  2. Department of Biomedical Engineering University of Rochester 308 Robert B. Goergen Hall Rochester NY 14627 USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1542517
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Name: Advanced Functional Materials Journal Volume: 29 Journal Issue: 38; Journal ID: ISSN 1616-301X
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Meng, Yuan, Xu, Weijing, Newman, Maureen R., Benoit, Danielle S. W., and Anthamatten, Mitchell. Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity. Germany: N. p., 2019. Web. doi:10.1002/adfm.201903721.
Meng, Yuan, Xu, Weijing, Newman, Maureen R., Benoit, Danielle S. W., & Anthamatten, Mitchell. Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity. Germany. https://doi.org/10.1002/adfm.201903721
Meng, Yuan, Xu, Weijing, Newman, Maureen R., Benoit, Danielle S. W., and Anthamatten, Mitchell. Mon . "Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity". Germany. https://doi.org/10.1002/adfm.201903721.
@article{osti_1542517,
title = {Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity},
author = {Meng, Yuan and Xu, Weijing and Newman, Maureen R. and Benoit, Danielle S. W. and Anthamatten, Mitchell},
abstractNote = {Abstract Polysiloxane elastomers represent a widely utilized soft material with excellent rubber‐like elasticity, biocompatibility, and biodurability; however, there is a lack of an effective and straightforward approach to manipulate the material's viscoelastic response. A facile hydrosilylation reaction is employed to integrate ureidopyrimidinone hydrogen‐bonding side‐groups into linear and crosslinked siloxane polymers to achieve biocompatible soft materials with a highly tunable viscoelastic relaxation timescale. Stacking of H‐bonded moieties is avoided in the designed macromolecular architectures with tight, side‐groups substituents. The obtained siloxane network features the presence of both covalent crosslinks and truly thermoreversible crosslinks, and can be formulated across a broad material design space including elastic solids, recoverable viscoelastic solids, and viscous liquids. The elastomers exhibit unique temperature‐dependent shape‐memory capability and show good cytocompatibility. Importantly, a deformed material's shape‐recovery occurs regardless of external triggering, and through manipulation of network formulations, the shape‐recovery timescale can be easily tuned from seconds to days, opening new possibilities for biomedical, healthcare, and soft material applications.},
doi = {10.1002/adfm.201903721},
journal = {Advanced Functional Materials},
number = 38,
volume = 29,
place = {Germany},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/adfm.201903721

Citation Metrics:
Cited by: 25 works
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