Anna Khlyustova, Anastasia Evdokimova, Valeria Shibaeva, Nikolay Sirotkin
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Spectral studies have shown that the color of photo-colored composites depends on the chemical structure of the polymer matrix. Mechanical tests have shown the possibility of obtaining hardened or plastic composites depending on the concentration and nature of the filler.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Photochromic polymer composites with W<sub>18</sub>O<sub>49</sub> and Mo<sub>4</sub>O<sub>11</sub> as fillers were obtained.</li>\n \n <li>Diaphragm discharge used as a tool for sol modification.</li>\n \n <li>WO<sub>x</sub>/MoO<sub>x</sub> and MoO<sub>x</sub>/WO<sub>x</sub> structures have improved photochromic properties.</li>\n \n <li>Color of irradiated polymer composites depends on chemical structure of polymer.</li>\n \n <li>Mechanical properties are determined by the polymer filler concentration.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 2","pages":"585-595"},"PeriodicalIF":3.8000,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photochromic properties of novel composites on the base of biopolymers and plasma-modified Mo4O11 and W18O49 nanostructures\",\"authors\":\"Anna Khlyustova, Anastasia Evdokimova, Valeria Shibaeva, Nikolay Sirotkin\",\"doi\":\"10.1002/vnl.22071\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>Novel photochromic composites based on biopolymers (polyvinyl alcohol, starch) and Mo<sub>4</sub>O<sub>11</sub> and W<sub>18</sub>O<sub>49</sub> as the fillers were obtained and characterized. To improve the photochromic properties, molybdenum and tungsten oxide sols were treated by an underwater diaphragm discharge to obtain binary structures of the MoO<sub>x</sub>/WO<sub>x</sub> and WO<sub>x</sub>/MoO<sub>x</sub> (2 < x < 3) types. The formation of such oxides was confirmed by TEM, EDX, XRD analysis, and Raman spectroscopy data. Plasma treatment is increased the color intensity and reversibility. The modified sols were incorporated into polymer matrices. Spectral studies have shown that the color of photo-colored composites depends on the chemical structure of the polymer matrix. 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引用次数: 0
摘要
以生物聚合物(聚乙烯醇、淀粉)为原料，以Mo4O11和W18O49为填料制备了新型光致变色复合材料，并对其进行了表征。为了提高钼钨氧化物溶胶的光致变色性能，采用水下膜片放电法对其进行处理，得到了MoOx/WOx和WOx/MoOx (2 < x < 3)型二元结构。通过TEM, EDX, XRD分析和拉曼光谱数据证实了这些氧化物的形成。等离子体处理增加了颜色强度和可逆性。将改性后的溶胶掺入到聚合物基质中。光谱研究表明，光着色复合材料的颜色取决于聚合物基体的化学结构。力学试验表明，根据填料的浓度和性质，获得硬化或塑性复合材料的可能性。
Photochromic properties of novel composites on the base of biopolymers and plasma-modified Mo4O11 and W18O49 nanostructures
Novel photochromic composites based on biopolymers (polyvinyl alcohol, starch) and Mo4O11 and W18O49 as the fillers were obtained and characterized. To improve the photochromic properties, molybdenum and tungsten oxide sols were treated by an underwater diaphragm discharge to obtain binary structures of the MoOx/WOx and WOx/MoOx (2 < x < 3) types. The formation of such oxides was confirmed by TEM, EDX, XRD analysis, and Raman spectroscopy data. Plasma treatment is increased the color intensity and reversibility. The modified sols were incorporated into polymer matrices. Spectral studies have shown that the color of photo-colored composites depends on the chemical structure of the polymer matrix. Mechanical tests have shown the possibility of obtaining hardened or plastic composites depending on the concentration and nature of the filler.
Highlights
Photochromic polymer composites with W18O49 and Mo4O11 as fillers were obtained.
Diaphragm discharge used as a tool for sol modification.
WOx/MoOx and MoOx/WOx structures have improved photochromic properties.
Color of irradiated polymer composites depends on chemical structure of polymer.
Mechanical properties are determined by the polymer filler concentration.
期刊介绍：
Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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