Stability of polydiorganosiloxane polymers

聚二有机硅氧烷聚合物的稳定性

• 批准号: 522663-2017
• 负责人: Zelisko, Paul
• 金额: $ 6.02万
• 依托单位: Brock University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669612
• 关键词: Stability; polydiorganosiloxane; polymers

Silicone polymers are used in a number of applications globally, as sealants, lubricants, coatings, etc. However, those silicones that are used for applications outside are subjected to a number of harsh environmental factors such as UV radiation, moisture, salts, and abrasives. ****Of particular interest is the capacity of the silicone polymers to repel water over time. This property has been shown to be affected by the neutralizing agent used to remove the polymer initiator from the reaction vessel, and ultimately the final silicone product.****As a result we are proposing to study the long-term stability of silicones and comparing the affect(s) that different neutralizing compounds have on the decomposition of the silicone polymers being manufactured by CSL Silicones, Inc. A key component of this study will be understanding the decomposition process, its rate, and the affiliated compounds that form as the silicone breaks down.**

有机硅聚合物在全球范围内广泛应用于密封剂、润滑剂、涂料等领域。然而，用于户外应用的有机硅会受到许多苛刻的环境因素的影响，如紫外线辐射、水分、盐和研磨剂。 * 特别感兴趣的是硅酮聚合物随时间排斥水的能力。 该性能已被证明受用于从反应容器中除去聚合物引发剂的中和剂的影响，并最终影响最终的有机硅产品。因此，我们建议研究有机硅的长期稳定性，并比较不同中和化合物对CSL Silicones，Inc.生产的有机硅聚合物分解的影响。 这项研究的一个关键组成部分将是了解分解过程，其速度，以及有机硅分解时形成的附属化合物。