Methodological Development at Exploratory Research on Mesoscopic Chemistry

第一年，我们从介观化学的角度讨论了分子科学和有机材料科学的一些问题。在第二年，我们研究了化学体系的结构、性质和功能在几十纳米的亚微米尺度。簇的形成、氢键网络、聚合物链的相互渗透、分子扩散、对流、微极性、微粘度、pH梯度等都可以是小尺寸的特征。时间分辨形态测量、时间分辨光谱学以及适用于小体积的分析方法对于阐明介观化学的本质是非常重要和必要的。主要讨论了介观光化学（聚合物吸收物的光诱导电荷分离和重组动力学、光异构化、振动弛豫和溶剂化弛豫）、介观化学反应（表面、界面层和簇）、介观官能化反应（扫描近场光学显微镜的光致变色反应、扫描隧道显微镜的粗糙度控制、有机微晶体的尺寸-官能化关系）、介观化学的本质。每年，我们都有非常有趣和刺激的研讨会，交换意见，完善我们的观点。在研究结果的基础上，我们出版了一本关于我们题目的报告小册子。

In the 1st year, we discussed some problems on molecular science and organic material science in terms of mesoscopic chemistry.In the 2nd year, we investigated structures, properties, and functionality in a few tens nm-sub mum dimension of chemical systems. Cluster formation, hydrogen bonding network, mutual interpenetration of polymer chains, molecular diffusion, convection, micropolarity, microviscosity, pH gradient, and so on could be characteristic of small dimension. Time-resolved morphological measurement, time-resolved spectroscopy, and analytical method which can be applicable to small volumes are important and necessary for elucidating the nature of mesoscopic chemistry. Main topics discussed are mesoscopic photochemistry (photoinduced charge separation and recombination dynamics on polymer absorbate, photoisomerization, vibrational relaxation and solvation relaxation), mesoscopic chemical reaction (surface, interface layr, and cluster), mesoscopic functionality (photochromic reaction by scanning near field optical microscopy, roughness control by scanning tunneling microscopy, size-functionality relation of organic microcrystal), and nature of mesoscopic chemistry.For each year, we had very interesting and stimulating seminars, exchanged our opinions, and polished up our perspectives. On the basis of the results we have published a report booklet on our title.