The solvent effect of D₂O on the thermochromic sensitivity of a polydiacetylene (PDA) vesicle system was characterized and estimated numerically in this study. Three types of diacetylene compounds (10,12-pentacosadiynoic acid, N-[2-(2-hydroxyethoxy)ethyl]pentacosa-10,12-diynamide, and N-(4-aminophenyl)pentacosa-10,12-diynamide) were used to form the vesicle solution by sonication in H₂O and D₂O. This was followed by polymerization using UV irradiation to form a PDA vesicle system. The solvent effect of D₂O on the physical properties of the PDA vesicles was estimated. The physical properties investigated herein were PDA vesicle size, critical vesicle concentration, and thermochromic change rate. The thermochromic change rate was measured using the relative degree of blue color (RBC), which was obtained from the UV spectrum data. The rate constants (k_H and k_D) of the thermochromic change were measured by plotting RBC against temperature. The solvent effect of D₂O was estimated via the ratio k_D/k_H. Finally, the solvent effect of D₂O on three physical properties of the PDA vesicles (vesicle size, critical vesicle concentration, and thermochromic change rate) was characterized numerically.

中文翻译：

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D2O 对聚二乙炔囊泡系统热致变色敏感性的溶剂影响

在本研究中，D ₂ O 对聚二乙炔 (PDA) 囊泡系统的热致变色敏感性的溶剂效应进行了表征和数值估计。三种类型的丁二炔化合物（10,12-pentacosadiynoic acid、N- [2-(2-hydroxyethoxy)ethyl]pentacosa-10,12-diynamide 和N- (4-aminophenyl)pentacosa-10,12-diynamide）是用于通过在 H ₂ O 和 D ₂ O 中超声处理形成囊泡溶液。然后使用紫外线照射聚合形成 PDA 囊泡系统。D ₂的溶剂效应估计了 PDA 囊泡物理特性上的 O。本文研究的物理性质是 PDA 囊泡大小、临界囊泡浓度和热致变色变化率。使用从紫外光谱数据获得的蓝色相对程度 (RBC) 测量热致变色变化率。热致变色变化的速率常数（k _H和 k _D）通过将 RBC 与温度作图来测量。D ₂ O的溶剂效应通过比率k _D /k _H估计。最后，D ₂的溶剂效应O 对 PDA 囊泡的三个物理性质（囊泡大小、临界囊泡浓度和热致变色变化率）进行了数值表征。