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"Solid-Liquid" Vitrimers Based on Dynamic Boronic Ester Networks 被引量:1
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作者 Sheng Wang Lu-Lu Xue +1 位作者 Xiao-Zhuang Zhou Jia-Xi Cui 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2021年第10期1292-1298,I0006,共8页
The"solid-liquid"behavior of vitrimers have not been systematically investigated.Herein,a series of"solid-liquid"vitrimers bearing varying contents of dynamic boronic ester bonds were synthesized v... The"solid-liquid"behavior of vitrimers have not been systematically investigated.Herein,a series of"solid-liquid"vitrimers bearing varying contents of dynamic boronic ester bonds were synthesized via thiol-ene click reactions.These vitrimers allow for flexibile modulation of their network structures and thus show a range of intriguing properties including high stretchability,flexible transition from elasticity to plasticity,strong strain rate dependence,and solid-liquid performance.The dynamic association rate of boronic ester bonds within these vitrimers could be apparently accelerated via increasing the content of boronic ester,which could be used to shape-program the flat vitrimer films into various complex 3D structures just with external force.Materials with such versatile dynamic behavior may open up a range of new applications. 展开更多
关键词 SOLID-LIQUID Dynamic covalent bond boronic ester bond Strain-rate dependent High stretchability
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