Fractal dimensionality of polymer networks formed by photopolymerization in a liquid crystal medium
Fractal dimensionality of polymer networks formed by photopolymerization in a liquid crystal medium
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DOI：
10.1088/0022-3727/35/20/310
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发表时间：
2002-10
期刊：
影响因子：
--
通讯作者：
I. Dierking
中科院分区：
文献类型：
--
作者：
I. Dierking
采用分形维数分析，以获得一个定量测量的形态形成的聚合物网络的光反应性介晶单体溶解在液晶主介质中的UV辐射诱导聚合。得到的分形维数，可以解释为聚合物网络的增长后，类似的模型的单体浓度远低于溶解度极限。在通过溶解度极限，聚合过程的变化从（自由基链）的溶液聚合到分散聚合，分形维数降低，并建议一个簇-簇聚集过程的单体浓度高于溶解度极限，类似于胶体颗粒的聚集。
Fractal dimensional analysis was employed to obtain a quantitative measure of the morphology of polymer networks formed by UV irradiation induced polymerization of photo-reactive mesogenic monomers dissolved in a liquid crystal host medium. The fractal dimensions obtained, may be interpreted by polymer network growth following a percolation-like model for monomer concentrations well below the solubility limit. On passing the solubility limit, the polymerization process changes from a (radical chain) solution polymerization to a dispersion polymerization, with fractal dimensions decreasing and suggesting a cluster–cluster aggregation process for monomer concentrations above the solubility limit, similar to the aggregation of colloidal particles.