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本文小结了含有吲哚满苯并螺烷基作为侧链连接或嵌入主链的光色共聚物或共聚脂的性质。从分子间与分子内的相互作用的观点和反式-反式与反式-顺式同分异构作用的空间位阻的观点分析了在苯并吡喃聚合物解质中的闭环反应。提出了闭环反应的模型,根据的是在部花青式与光化学产生的构家缺陷之间的相互作用,这一作用受缺陷扩散的控制。考虑了两种溶解在聚甲基丙烯酸烷基酯中的吲哚满苯并螺吡喃消色的结果以检验这一模型,并计算了缺陷扩散的扩散常数与活化能。本文还举出了所提出的模型的局限性,并就其进一步发展方向提出了建议。
This paper summarizes the properties of photochromic copolymers or copolyesters containing indolboxen-spiroalkyl groups as side chains attached to or embedded in the backbone. The ring-closure reaction in the degradation of benzopyran polymers was analyzed from the viewpoint of the intermolecular and intramolecular interactions and the steric hindrance of the trans-trans and trans-cis isomers. A model for the closed-loop reaction is proposed, based on the interaction between the merocyanine and the photon-induced defect in the structure, which is governed by the diffusion of defects. Two models of indomethacin spirolololysis dissolved in polyalkylmethacrylate were considered to test this model and the diffusion constants and activation energies of the defect diffusion were calculated. This article also lists the limitations of the proposed model and makes recommendations for its further development.