Polyurethane Coatings Derived from 1,2,3-Triazole-Functionalized Soybean Oil-Based Polyols: Studying their Physical, Mechanical, Thermal, and Biological Properties

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• 作者：Hadi Bakhshi ; Hamid Yeganeh ; Shahram Mehdipour-Ataei ; Atefeh Solouk ; Shiva Irani
• 刊名：Macromolecules
• 出版年：2013
• 出版时间：October 8, 2013
• 年：2013
• 卷：46
• 期：19
• 页码：7777-7788
• 全文大小：724K
• 年卷期：v.46,no.19(October 8, 2013)
• ISSN：1520-5835

文摘

Preparation of polyurethanes derived from novel 1,2,3-triazole-functionalized soybean oil-based polyols and assessment of their possible biocidal activities were considered. Epoxidized soybean oil was reacted with sodium azide to produce an azide-containing polyol. The product was subjected to the cycloaddition reaction with various alkynes. Alkylation of tertiary amine-containing polyol with methyl iodide was also performed to prepare a quaternary ammonium salt (QAS)-containing polyol. The polyols and their mixtures with PEG1000 were reacted with isophorone diisocyanate to prepare polyurethane coatings. The influence of embedded functional groups on physical, mechanical, thermal and biological properties of polyurethanes was studied. Incorporation of 1,2,3-triazole groups within the polyol backbone resulted in higher storage modulus at glassy state, glass transition temperature, thermal stability and hardness of corresponding polyurethanes, while it led to lower adhesion strength and hydrophilicity. Although QAS-containing polyurethanes displayed better physical and mechanical properties, but their thermal stability were reduced. Studying the interaction of fibroblast cells with polyurethanes derived merely from oil-based polyols revealed their good cells viability (60鈥?10%). Moderate to high biocidal activity was detected for polyols and polyurethanes containing tertiary amine and QAS groups. Improving the hydrophilicity of polyurethanes via incorporation of PEG1000 improved their biocidal activity, while it reduced their cytocompatibility.