Image of Electric Stimulus-Response of Polymer Gels and Its Application to Molecular Design

聚合物凝胶的电刺激响应图像及其在分子设计中的应用

• 批准号: 08455449
• 负责人: ANDO Isao
• 金额: $ 5.31万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455449/
• 关键词: Polymer Gel; NMR Imaging; Spatial Information; Stimulus-Response; Molecular Design; Molecular Motion; Image Pattern; 画像解析

Water-swollen crosslinked polymer gels deform by the application of an electic field. For this, application of polymer gels to electrically-activated devices have been widely wtudied using these deformation properties. From such situation, in order to clarify changes in macroscopic structure and dynamics of water molecules in crosslinked poly (methacrylic acid) gel by the application of electric field through the observation of microscopic information at the molecular level, ^1H NMR imaging patterns with with information about the spatial distribution of ^1H spin density and ^1H spin-spin relaxation time T2 of water molecules in the polymer gel have been successfully measured. From these experimental results, we have elucidated the mechanism of shrinkage process of polymer gel and migration of paramagnetic metal ion in polymer gel under electric field. Futher, the application of these research works to molecular design of polymer gels has been usefully studied.

水溶胀的交联聚合物凝胶通过施加电场而变形。为此，聚合物凝胶在电激活器件中的应用已经利用这些变形特性被广泛研究。从这种情况出发，为了阐明交联聚乙烯中水分子的宏观结构变化和动力学，（甲基丙烯酸）凝胶通过施加电场通过在分子水平上观察微观信息，^1H NMR成像模式具有关于^1H自旋密度和^1H自旋的空间分布的信息。成功地测量了聚合物凝胶中水分子的自旋弛豫时间T2。从这些实验结果中，我们阐明了聚合物凝胶收缩过程和顺磁性金属离子在电场作用下的迁移机理。并对这些研究成果在聚合物凝胶分子设计中的应用进行了有益的探索。

项目成果

N.Tanaka, I.Ando: "A Study of Dynamics of Water in Crosslinked Polymer Gel by NMR Spectroscopy" Polymer. (in press). (1998)

N.Tanaka、I.Ando：“通过 NMR 光谱研究交联聚合物凝胶中水的动力学”聚合物。

I.Ando: "Structure and Dynamics of Polymer Gel Oburues by HNMR Imazing and HPGSENMR" Polymer Network Review. 1. 321-346 (1998)

I.Ando：“HNMR Imazing 和 HPGSENMR 的聚合物凝胶 Oburues 的结构和动力学”聚合物网络评论。

S.Matsukawa,I.Ando: "Astudy of Self-Diffusion of Molecules in Polymer gel by Pulsed-Gradient Spin-Echo ^1H NMR" Macromolecules. 29. 7136-7140 (1996)

S.Matsukawa，I.Ando：“通过脉冲梯度自旋回波 ^1H NMR 对聚合物凝胶中分子的自扩散进行研究”大分子。

A.Yamazaki, I.Ando: "Imazing Analgsis of Spatial Distubution of Paramagnetic Mnztions in a PMAAgel" Polymer. 39. 1511-1514 (1998)

A.Yamazaki、I.Ando：“PMAAgel 中顺磁性 Mnztion 的空间分布的成像分析”聚合物。

C.Zhao, I.Ando: "Self-Diffusion Behavion of Solueuts in a Polypeptede Gel by HPGSENMR" Macromolecules. 印刷中. (1998)

C.Zhao，I.Ando：“通过 HPGSENMR 测定多肽凝胶中溶液的自扩散行为”，已出版（1998 年）。