Design, synthesis, and characterization of lightly sulfonated multigraft acrylate-based copolymer superelastomers

Misichronis, Konstantinos; Wang, Weiyu; Cheng, Shiwang; Wang, Yangyang; Shrestha, Umesh; Dadmun, Mark; Mays, Jimmy W.; Saito, Tomonori

doi:10.1039/C7RA08641E

Title: Design, synthesis, and characterization of lightly sulfonated multigraft acrylate-based copolymer superelastomers

Journal Article · Mon Jan 01 00:00:00 EST 2018 · RSC Advances

DOI:https://doi.org/10.1039/C7RA08641E· OSTI ID:1418384

^[1]; Wang, Weiyu ^[2]; Cheng, Shiwang ^[3];

^[2]; Shrestha, Umesh ^[4];

^[1]; Mays, Jimmy W. ^[1];

^[3]

Department of Chemistry, University of Tennessee, Knoxville, USA, Chemical Sciences Division
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, USA
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, USA
Department of Chemistry, University of Tennessee, Knoxville, USA

Multigraft copolymer superelastomers consisting of a poly(n-butyl acrylate) backbone and polystyrene side chains were synthesized and the viscoelastic properties of the non-sulfonated and sulfonated final materials were investigated using extensional rheology (SER3). The non-linear viscoelastic experiments revealed significantly increased true stresses (up to 10 times higher) after sulfonating only 2–3% of the copolymer while the materials maintained high elongation (<700%). The linear viscoelastic experiments showed that the storage and loss modulus are increased by sulfonation and that the copolymers can be readily tuned and further improved by increasing the number of branching points and the molecular weight of the backbone. Here, in this way, we show that by tuning not only the molecular characteristics of the multigraft copolymers but also their architecture and chemical interaction, we can acquire thermoplastic superelastomer materials with desired viscoelastic properties.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1418384

Alternate ID(s):: OSTI ID: 1423075

Journal Information:: RSC Advances, Journal Name: RSC Advances Vol. 8 Journal Issue: 10; ISSN 2046-2069

Publisher:: Royal Society of Chemistry (RSC)Copyright Statement

Country of Publication:: United Kingdom

Language:: English

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Cited by: 3 works

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