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由旋光性联萘酚单体和聚氨酯预聚物制备光学活性聚氨酯及其表征

Preparation and Characterization of Optically Active Polyurethane from Rotatory Binaphthol Monomer and Polyurethane Prepolymer.

作者信息

Lin Ling, Mao Haiyan, Li Ziyin, Li Wenyao, Wang Chaoxia

机构信息

Key Laboratory of Eco-Textile, School of Textiles and Clothing, Jiangnan University, Ministry of Education, 1800 Lihu Road, Wuxi 214122, China.

Yancheng Institute of Technology, College of Textiles and Clothing, Yancheng 224051, China.

出版信息

Molecules. 2021 May 18;26(10):2986. doi: 10.3390/molecules26102986.

DOI:10.3390/molecules26102986
PMID:34069843
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8157367/
Abstract

Optically active polymers are promising multifunctional materials with great application potentials. Herein, environmentally friendly optically active polyurethanes (OPUs) were obtained by introducing rotatory binaphthol monomer to polyurethane. The influence of binaphthol monomer content on the structure, mechanical properties, infrared emissivity, and thermal insulation of OPUs was studied intensively. Structure characterization indicated that the optically active polyurethanes have been successfully synthesized. The OPU synthesized with BIMOL and BDO at the mole ratio of 1:1 presented better thermal resistance. In addition, OPUs showed enhanced tensile strength and stretchability with the increase of BINOL content to a certain extent due to its rigid structural features and high molecular weight. The optically active polyurethanes showed lower infrared emissivity values (8-14 μm) than waterborne polyurethane (WPU), and the infrared emissivity decreased from 0.850 to 0.572 as the content of the BINOL monomer increased. Moreover, OPU4 exhibited the best heat insulation and cooling ability with about a 7 °C temperature difference. The thus-synthesized optically active polyurethanes provide an effective solution for developing highly effective thermal insulation materials.

摘要

光学活性聚合物是具有巨大应用潜力的多功能材料。在此，通过将旋光性联萘酚单体引入聚氨酯中，获得了环境友好型光学活性聚氨酯（OPUs）。深入研究了联萘酚单体含量对OPUs结构、力学性能、红外发射率和隔热性能的影响。结构表征表明已成功合成了光学活性聚氨酯。以摩尔比1:1的BIMOL和BDO合成的OPU表现出更好的耐热性。此外，由于其刚性结构特征和高分子量，OPUs在一定程度上联萘酚含量增加时拉伸强度和拉伸性增强。光学活性聚氨酯的红外发射率值（8 - 14μm）低于水性聚氨酯（WPU），并且随着联萘酚单体含量的增加，红外发射率从0.850降至0.572。此外，OPU4表现出最佳的隔热和冷却能力，温差约为7℃。如此合成的光学活性聚氨酯为开发高效隔热材料提供了有效的解决方案。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/14179ffc8228/molecules-26-02986-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/c69c2dede534/molecules-26-02986-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/547c2ea270ad/molecules-26-02986-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/a7d8c932e4d6/molecules-26-02986-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/1239989fe6c2/molecules-26-02986-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/94e5bf49d069/molecules-26-02986-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/cf30d256da37/molecules-26-02986-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/6ae212399e17/molecules-26-02986-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/14179ffc8228/molecules-26-02986-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/c69c2dede534/molecules-26-02986-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/547c2ea270ad/molecules-26-02986-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/a7d8c932e4d6/molecules-26-02986-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/1239989fe6c2/molecules-26-02986-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/94e5bf49d069/molecules-26-02986-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/cf30d256da37/molecules-26-02986-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/6ae212399e17/molecules-26-02986-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/48e9/8157367/14179ffc8228/molecules-26-02986-g007.jpg

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本文引用的文献

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