Study of C─H⋯O Bond of Organic–Inorganic Hybrids Based on Polyhydroxybutyrate and Oxides Obtained Via an In Situ Sol–Gel Route,Polymer Engineering and Science

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Study of C─H⋯O Bond of Organic–Inorganic Hybrids Based on Polyhydroxybutyrate and Oxides Obtained Via an In Situ Sol–Gel Route
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-01-06 , DOI: 10.1002/pen.25325
Anna Lecticia Martinez Martinez Toledo ₁ , Elton Jorge Rocha Rodrigues ₁ , José Carlos Dutra Filho ₁ , Domethila Mariano Souza Aguiar dos Santos ₂ , Suelen Adriani Marques _{2,

3} , Maria Inês Bruno Tavares ₁

Affiliation

Sol–gel‐based zirconia (ZrO₂) and silica (SiO₂) were obtained in situ via hydrolysis–polycondensation of metal alkoxide precursors in membranes of poly(3‐hydroxybutyrate) (PHB). What followed was an assessment of thermal and spectroscopic effects from the insertion of the inorganic network in the PHB matrix. The findings exhibited a dependence of both the concentration and the chemical nature of the precursor on the properties of the as‐formed inorganic–organic hybrids. The results also indicated that positive nucleating effects, a reduction of the crystallite size and a variation in thermal transitions correlate with spectroscopic data from the alpha and beta crystal forms of the PHB matrix, as well as the crystallization data obtained through polarized light microscopy. POLYM. ENG. SCI., 60:673–681, 2020. © 2020 Society of Plastics Engineers

中文翻译：

通过原位溶胶-凝胶法获得的基于聚羟基丁酸酯和氧化物的有机-无机杂化体的C-H⋯O键研究

通过溶胶原位获得基于溶胶-凝胶的氧化锆（ZrO ₂）和二氧化硅（SiO ₂）水解–聚（3-羟基丁酸酯）（PHB）膜中金属醇盐前体的缩聚反应。随后评估了PHB基质中无机网络的插入对热和光谱的影响。研究结果表明，前体的浓度和化学性质都与所形成的无机-有机杂化物的性质有关。结果还表明，积极的成核作用，微晶尺寸的减小和热转变的变化与来自PHB基质的α和β晶型的光谱数据以及通过偏光显微镜获得的结晶数据相关。POLYM。ENG。SCI。，60：673–681，2020.©2020塑料工程师协会

更新日期：2020-01-06

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