Small and large amplitude oscillatory shear behavior of supramolecular gels based on dopamine-boronic acid interactions

Lei Du; Chandra Sekhar Biswas; Yuhang Wu; Amin GhavamiNejad; Florian J. Stadler

doi:10.1122/1.5068709

Small and large amplitude oscillatory shear behavior of supramolecular gels based on dopamine-boronic acid interactions

Lei Du, Chandra Sekhar Biswas, Yuhang Wu, Amin GhavamiNejad, Florian J. Stadler^*

^*Corresponding author for this work

Biomedical Engineering

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

6 Scopus citations

Abstract

Blends of polymer solutions of poly(N-isopropylacrylamide-co-dopamine methacrylamide) (NIDO) and poly(N-isopropylacrylamide-co-4-vinylphenylboronic acid) (NIBA) in aqueous solutions were studied rheologically at pH ≈ 9. The functional catechol group of NIDO and the boronic acid group of NIBA could form coordinative complexes, which are strong, yet could be broken by high deformation, while they could reconfigure quickly within 1 min on a macroscopic scale. The linear and nonlinear behaviors of these materials vary significantly for different component mixing ratios. At a total polymer concentration of 10 w/v %, the 1:1 mixture (w_NIBA/w_NIDO) of the two polymers yields the strongest gel compared with asymmetric blends. The nonlinearity intensities (I_n/I₁) of the materials increase proportionately with strain γ₀, but once a significant nonlinearity is reached, they show lower nonlinearity intensities, which is unlike regular nonassociative single phase polymer melts and solutions. Interaction of polymer NIDO and NIBA and the formed supramolecular gels' properties will be clarified by large amplitude oscillatory shear characterization.

Original language	English (US)
Pages (from-to)	391-404
Number of pages	14
Journal	Journal of Rheology
Volume	63
Issue number	3
DOIs	https://doi.org/10.1122/1.5068709
State	Published - May 1 2019

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Small and large amplitude oscillatory shear behavior of supramolecular gels based on dopamine-boronic acid interactions",

abstract = "Blends of polymer solutions of poly(N-isopropylacrylamide-co-dopamine methacrylamide) (NIDO) and poly(N-isopropylacrylamide-co-4-vinylphenylboronic acid) (NIBA) in aqueous solutions were studied rheologically at pH ≈ 9. The functional catechol group of NIDO and the boronic acid group of NIBA could form coordinative complexes, which are strong, yet could be broken by high deformation, while they could reconfigure quickly within 1 min on a macroscopic scale. The linear and nonlinear behaviors of these materials vary significantly for different component mixing ratios. At a total polymer concentration of 10 w/v %, the 1:1 mixture (wNIBA/wNIDO) of the two polymers yields the strongest gel compared with asymmetric blends. The nonlinearity intensities (In/I1) of the materials increase proportionately with strain γ0, but once a significant nonlinearity is reached, they show lower nonlinearity intensities, which is unlike regular nonassociative single phase polymer melts and solutions. Interaction of polymer NIDO and NIBA and the formed supramolecular gels' properties will be clarified by large amplitude oscillatory shear characterization.",

author = "Lei Du and Biswas, {Chandra Sekhar} and Yuhang Wu and Amin GhavamiNejad and Stadler, {Florian J.}",

note = "Funding Information: The authors would like to thank the National Science Foundation of China (Nos. 21574086 and 31801489), the Nanshan District Key Lab for Biopolymers and Safety Evaluation (No. KC2014ZDZJ0001A), Shenzhen Sci & Tech Research Grant (No. ZDSYS201507141105130), and the Shenzhen City Science and Technology Plan Project (No. JCYJ20140509172719311) for financial support. Publisher Copyright: {\textcopyright} 2019 The Society of Rheology.",

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doi = "10.1122/1.5068709",

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AU - Du, Lei

AU - Biswas, Chandra Sekhar

AU - Wu, Yuhang

AU - GhavamiNejad, Amin

AU - Stadler, Florian J.

N1 - Funding Information: The authors would like to thank the National Science Foundation of China (Nos. 21574086 and 31801489), the Nanshan District Key Lab for Biopolymers and Safety Evaluation (No. KC2014ZDZJ0001A), Shenzhen Sci & Tech Research Grant (No. ZDSYS201507141105130), and the Shenzhen City Science and Technology Plan Project (No. JCYJ20140509172719311) for financial support. Publisher Copyright: © 2019 The Society of Rheology.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - Blends of polymer solutions of poly(N-isopropylacrylamide-co-dopamine methacrylamide) (NIDO) and poly(N-isopropylacrylamide-co-4-vinylphenylboronic acid) (NIBA) in aqueous solutions were studied rheologically at pH ≈ 9. The functional catechol group of NIDO and the boronic acid group of NIBA could form coordinative complexes, which are strong, yet could be broken by high deformation, while they could reconfigure quickly within 1 min on a macroscopic scale. The linear and nonlinear behaviors of these materials vary significantly for different component mixing ratios. At a total polymer concentration of 10 w/v %, the 1:1 mixture (wNIBA/wNIDO) of the two polymers yields the strongest gel compared with asymmetric blends. The nonlinearity intensities (In/I1) of the materials increase proportionately with strain γ0, but once a significant nonlinearity is reached, they show lower nonlinearity intensities, which is unlike regular nonassociative single phase polymer melts and solutions. Interaction of polymer NIDO and NIBA and the formed supramolecular gels' properties will be clarified by large amplitude oscillatory shear characterization.

AB - Blends of polymer solutions of poly(N-isopropylacrylamide-co-dopamine methacrylamide) (NIDO) and poly(N-isopropylacrylamide-co-4-vinylphenylboronic acid) (NIBA) in aqueous solutions were studied rheologically at pH ≈ 9. The functional catechol group of NIDO and the boronic acid group of NIBA could form coordinative complexes, which are strong, yet could be broken by high deformation, while they could reconfigure quickly within 1 min on a macroscopic scale. The linear and nonlinear behaviors of these materials vary significantly for different component mixing ratios. At a total polymer concentration of 10 w/v %, the 1:1 mixture (wNIBA/wNIDO) of the two polymers yields the strongest gel compared with asymmetric blends. The nonlinearity intensities (In/I1) of the materials increase proportionately with strain γ0, but once a significant nonlinearity is reached, they show lower nonlinearity intensities, which is unlike regular nonassociative single phase polymer melts and solutions. Interaction of polymer NIDO and NIBA and the formed supramolecular gels' properties will be clarified by large amplitude oscillatory shear characterization.

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Small and large amplitude oscillatory shear behavior of supramolecular gels based on dopamine-boronic acid interactions

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