Molecular and Functional Design of Polysiloxane Graft Polymers.

聚硅氧烷接枝聚合物的分子和功能设计。

• 批准号: 60550639
• 负责人: KAWAKAMI Yuhsuke
• 金额: $ 1.28万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550639/
• 关键词: macromer; polysiloxane; graft polymers; selective oxygen permeable membrane; diffusion; dissolution; surface modification; 分子設計

The objectives of this research are as follows.1. Establishment of the synthetic method of well-defined polysiloxane graft polymers.2. Understanding of fundamental relation between the polymer structure and oxygen permeability.3. Development of new functions of polysiloxane compounds.Concerning 1: the synthetic methods of new oligosiloxane monomers and macromers, such as <alpha> -oligodimethylsiloxanylacrylonitrile and styrene derivatives with oligodimethylsiloxane of various structure as p-substituent were found and established. These results were reported in Polym. Comm., 26(5), 133(1985), Tetrahedron Lett., 26(47), 5385(1985), etc.Concerning 2: It was elucidated that the permeation of gases through the homogeneous polymer membrane was controlled by the diffusion coefficient. The oligodimethylsiloxanes were found to act effectively to increase the diffusibility of gases through the membrane by their vigorous motion as substituents. The extent of the motion was quantitatively analyzed by NMR.Concerning 3: The low surface free energy of polysiloxane and flurine atom containing polymer was used successfully to accumulate at the surface of the blend polymer film. Such surface modification was found to be quite effective to enhance not only the permeability of oxygen, but also to enhance the selectivity of oxygen permeation over nitrogen.

本研究的目的如下：1.明确了聚硅氧烷接枝聚合物的合成方法.了解高分子结构与透氧性能之间的基本关系.聚硅氧烷化合物新功能的开发：1.<alpha>发现并建立了以各种结构的低聚二甲基硅氧烷为对位取代基的低聚二甲基丙烯腈和苯乙烯衍生物等新型低聚硅氧烷单体和大分子单体的合成方法。这些结果在Polym中报告。通信，26（5），133（1985），Tetrahedron Lett. 26（47），5385（1985）等。关于2：阐明了气体通过均相聚合物膜的渗透受扩散系数控制。低聚二甲基硅氧烷被发现有效地采取行动，以增加通过膜的气体的扩散性，通过它们的激烈运动作为取代基。利用聚硅氧烷和含氟聚合物的低表面自由能，成功地在共混聚合物膜表面聚集。这种表面改性被发现是非常有效的，以提高不仅是氧气的渗透性，而且还提高了氧气渗透的选择性超过氮。

项目成果

川上雄資: J.Polym.Sci.-Polym.Chem.Ed.(1987)

川上雄二：J.Polym.Sci.-Polym.Chem.Ed.(1987)

Yuhsuke Kawakami: "The Role of p-Oligosiloxane Substituents of Polystyrene in Selective Oxygen Permeation through the Polymer Film." Polym. J.18(3). 237-241 (1986)

Yuhsuke Kawakami：“聚苯乙烯的对低聚硅氧烷取代基在聚合物膜选择性氧气渗透中的作用。”

川上雄資: 化学工業. 56-71 (1987)

川上裕二：化学工业。56-71 (1987)

川上雄資: 高分子加江. 34(12). 574-582 (1985)

川上裕二：Kae Kobunshi 34（12）574-582（1985）。

Yuhsuke Kawakami: "Synthesis and Application of Polysiloxane Macromers." American Chemical Society Symp. Ser.286. 245-261 (1985)

Yuhsuke Kawakami：“聚硅氧烷大分子单体的合成和应用。”