Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation

Merle B, Kraus X, Tallawi M, Scharfe B, El Fray M, Aifantis KE, Boccaccini AR, Göken M (2018)


Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

Publisher: ELSEVIER SCIENCE BV

Book Volume: 221

Pages Range: 115-118

DOI: 10.1016/j.matlet.2018.03.051

Abstract

The viscoelastic properties of polymer blends of poly(glycerol sebacate) (PGS) and poly(butylene succinate-dilinoleate) (PBS-DLA) copolymer intended for cardiac tissue patches are investigated by dynamic flat punch nanoindentation at frequencies ranging from 1 to 45 Hz. The storage modulus is found to depend weakly on the testing frequency, the lowest value being for 1 Hz, which corresponds to the usual heart rate. More significantly, it is found that varying the PGS content between 40 and 70 wt% allows tuning the storage modulus of the blends between 11 and 39 MPa. The reliability of the nanoindentation method is validated by reference dynamic mechanical measurements on thicker PBS-DLA samples using a tensile testing machine. (C) 2018 Elsevier B.V. All rights reserved.

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APA:

Merle, B., Kraus, X., Tallawi, M., Scharfe, B., El Fray, M., Aifantis, K.E.,... Göken, M. (2018). Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation. Materials Letters, 221, 115-118. https://doi.org/10.1016/j.matlet.2018.03.051

MLA:

Merle, Benoit, et al. "Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation." Materials Letters 221 (2018): 115-118.

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