Molecular design for silane‐terminated polyurethane applied to moisture‐curable pressure‐sensitive adhesive |
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| Authors: | Ye Yuan Yanyan Zhang Xiaowei Fu Weibo Kong Zhimeng Liu Kai Hu Liang Jiang Jingxin Lei |
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| Affiliation: | State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China |
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| Abstract: | Moisture‐curable silane‐terminated polyurethanes (SPUs) served as pressure‐sensitive adhesive (PSA) were synthesized based on different soft‐segment materials, silanes and silane end‐capping ratios. Depending on peel strength, tack, and holding power, the characteristic properties for PSA, a proper scheme for the design of the PSA molecular structure could be selected. Completely end‐capped by silane and assembled by poly(propylene glycol), SPU films presented better properties. On the basis of comprehensive considerations, the anilinomethyltriethoxysilane was an excellent silane‐end capper for PSA. Otherwise, the obtained PSAs did not degrade below 250 °C. The glass transition temperature and hydrophobicity of SPU samples with different formulas were also investigated. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 45292. |
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| Keywords: | end‐cap molecular design polyurethane pressure‐sensitive adhesive silane |
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