Biomimetic Gradient Polymers with Enhanced Damping Capacities

Macromolecular Rapid Communications
Dong WangJian Xu

Abstract

Designing gradient structures, mimicking biological materials, such as pummelo peels and tendon, is a promising strategy for developing advanced materials with superior energy damping capacities. Here a facile and effective approach for fabricating polymers with composition gradients at millimeter length scale is presented. The gradient thiol-ene polymers (TEPs) are created by the use of density difference of ternary thiol-ene-ene precursors and the subsequent photo-crosslinking via thiol-ene reaction. The compositional gradients are analyzed via differential scanning calorimeter (DSC), compressive modulus testing, atomic force microscopy (AFM) indentation, and swelling measurements. In contrast to homogeneous TEPs networks, the resultant gradient polymer shows a broader effective damping temperature range combining with good mechanical properties. The present result provides an effective route toward high damping materials by the fabrication of gradient structures.

References

Sep 14, 2007·The Journal of Physical Chemistry. B·Yuchan ZhuGuangsu Huang
Sep 4, 2009·Journal of the Royal Society, Interface·Markus RüggebergThomas Speck
Oct 1, 2011·Chemical Communications : Chem Comm·Adham AhmedHaifei Zhang
Feb 10, 2012·Advanced Materials·Jerome V KarpiakAdah Almutairi
Dec 13, 2012·Nature Communications·Rafael LibanoriAndré R Studart
Sep 13, 2014·Advanced Materials·Ning ZhaoJian Xu
Jan 23, 2015·ACS Applied Materials & Interfaces·Daniele NuvoliAlberto Mariani

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Citations

Jun 16, 2016·Biomacromolecules·Alejandro J BenítezAndreas Walther
Oct 11, 2017·Angewandte Chemie·James A NealZhibin Guan
Sep 25, 2020·Biomacromolecules·Yefei ZhangStuart J Rowan

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