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- Title
Solvent effect of D<sub>2</sub>O on the thermochromic sensitivity of polydiacetylene vesicle systems.
- Abstract
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 (kH and kD) of the thermochromic change were measured by plotting RBC against temperature. The solvent effect of D2O was estimated via the ratio kD/kH. 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.
- Subjects
DEUTERIUM oxide; THERMOCHROMISM; SOLVENTS; SONICATION
- Publication
Bulletin of the Korean Chemical Society, 2021, Vol 42, Issue 11, p1458
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.12396