Catalytic Systems for the Cross-Linking of Organosilicon Polymers,Chemistry - An Asian Journal

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Catalytic Systems for the Cross-Linking of Organosilicon Polymers
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2017-05-15 07:41:44 , DOI: 10.1002/asia.201700304
Dengxu Wang _{1,

2} , Johann Klein ₃ , Esteban Mejía ₁

Affiliation

Silicones and silicone rubbers are omnipresent in household and industrial products such as lubricants, coatings, sealants, insulators, medical devices, etc. This plethora of applications arises from their unparalleled properties including hydrophobicity, low surface energy, chemical inertness, extreme temperature stability, elasticity, and biocompatibility. Even though silicones have been known for more than five decades, their chemistry is still far from fully understood. Industrially, the vast majority of processes for their synthesis, transformation, and use are based on rather well established, alas outdated technologies, which are frequently empirical and poorly investigated. This review attempts to summarize the different approaches for the synthesis of silicone rubbers by vulcanization or curing of silicone polymers, the catalysts used, and the corresponding reaction mechanisms. Apart from the well-known methods (radical, hydrosilylation, and metal-based condensation), novel approaches such as organo- and bio-catalysis are also addressed.

中文翻译：

有机硅聚合物交联的催化体系

有机硅和硅橡胶在诸如润滑剂，涂料，密封剂，绝缘体，医疗设备等家用和工业产品中无处不在。大量的应用是由于它们无与伦比的特性，包括疏水性，低表面能，化学惰性，极高的温度稳定性，弹性和生物相容性。尽管有机硅已被人们知道了超过五十年，但其化学性质仍远未得到充分理解。在工业上，它们的合成，转化和使用的绝大多数过程都基于相当成熟的，过时的技术，这些技术通常是经验丰富的，并且没有得到很好的研究。这篇综述试图总结通过硫化或固化有机硅聚合物（所用的催化剂）来合成有机硅橡胶的不同方法。以及相应的反应机理。除了众所周知的方法（自由基，氢化硅烷化和金属基缩合）以外，还讨论了诸如有机催化和生物催化之类的新方法。

更新日期：2017-05-16

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