Combining agriculture and energy industry waste products to yield recyclable, thermally healable copolymers of elemental sulfur and oleic acid
Combining agriculture and energy industry waste products to yield recyclable, thermally healable copolymers of elemental sulfur and oleic acid
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将农业和能源工业废物结合起来产生可回收、可热修复的元素硫和油酸的共聚物
DOI:
10.1002/pola.29436
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Tennyson, Andrew G.
中科院分区:
文献类型:
--
作者:
Smith, Ashlyn D.;Thiounn, Timmy;Lyles, Elliott W.;Kibler, Emily K.;Smith, Rhett C.;Tennyson, Andrew G.
Sulfur and oleic acid, two components of industrial waste/byproducts, were combined in an effort to prepare more sustainable polymeric materials. Zinc oxide was employed to serve the dual role of compatibilizing immiscible sulfur and oleic acid as well as to suppress evolution of toxic H2S gas during reaction at high temperature. The reaction of sulfur, oleic acid, and zinc oxide led to a series of composites,ZOSx(x= wt % sulfur, wherexis 8–99). TheZOSxmaterials ranged from sticky tars to hard solids at room temperature. TheZOSxcompositions were assessed by1H NMR spectrometry, FTIR spectroscopy, and elemental microanalysis. CopolymersZOS59‐99, were further analyzed for thermal and mechanical properties by thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis. Remarkably, evenZOS99, comprising only 1 wt % of zinc oxide/oleic acid (99 wt % S) exhibits at least an eightfold increase in storage modulus compared to sulfur alone. The four solid samples (59–99 wt % S) were thermally healable and readily remeltable with full retention of mechanical durability. These materials represent a valuable proof‐of‐concept for sustainably sourced, recyclable materials from unsaturated fatty acid waste products. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1704–1710
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