Beltsios K, Soterakou E, Tsangaris G, Kanellopoulos N
Institute of Physical Chemistry, NCSR Demokritos, Agh. Paraskevi Attikis, 15310, Greece.
J Nanosci Nanotechnol. 2001 Sep;1(3):349-56. doi: 10.1166/jnn.2001.044.
The effect of casting solvent quality (good vs. [symbol: see text] solvent) on the structure of Langmuir-Blodgett films of a flexible-chain polymer [poly(dimethylsiloxane)] was examined on the basis of differences in the shape of Langmuir-Blodgett isotherms for two solvents, two temperatures, four polymer molecular weights, and three compression rates. The magnitude of a new index that describes the shape characteristics of the isotherm beyond the point of monolayer formation is found to be capable of separating all 48 isotherms studied into two groups, exclusively on the basis of the quality of the casting solvent. Experimental observations are supplemented by qualitative polymer physics interpretations regarding the structure of the films upon casting and compression.
基于两种溶剂、两种温度、四种聚合物分子量和三种压缩速率下朗缪尔-布洛杰特等温线形状的差异，研究了浇铸溶剂质量（良好溶剂与[符号：见原文]溶剂）对柔性链聚合物[聚二甲基硅氧烷]朗缪尔-布洛杰特膜结构的影响。发现一个描述等温线在单分子层形成点之后形状特征的新指标的大小能够仅根据浇铸溶剂的质量将所研究的48条等温线全部分为两组。通过对浇铸和压缩后膜结构的定性聚合物物理学解释对实验观察结果进行了补充。
