title: Colorimetric reversibility of polydiacetylene supramolecules having enhanced hydrogen-bonding under thermal and pH stimuli.
abstract: To investigate the role of hydrogen-bonding on colorimetric transition of polydiacetylene supramolecules, novel diacetylene derivatives allowing various hydrogen-bonding states were synthesized by coupling carboxy-substituted (ortho-, meta-, and para-) anilide groups with a typical single-chain diacetylene lipid. One with a terminal carboxyl group at the meta position provided the resulting supramolecular Langmuir-Schaefer films with enhanced hydrogen-bonding, and hence resulted in unprecedented colorimetric reversibility under both thermal and pH stimuli.
authors.affiliation: Department of Chemical & Biological Engineering, Korea University, Seoul 136-701, Korea. ahn@korea.ac.kr
authors.forename: Dong June
authors.initials: DJ
authors.lastname: Ahn
authors.forename: Eun-Hyuk
authors.initials: EH
authors.lastname: Chae
authors.forename: Gil Sun
authors.initials: GS
authors.lastname: Lee
authors.forename: Hee-Yong
authors.initials: HY
authors.lastname: Shim
authors.forename: Tae-Eun
authors.initials: TE
authors.lastname: Chang
authors.forename: Kwang-Duk
authors.initials: KD
authors.lastname: Ahn
authors.forename: Jong-Man
authors.initials: JM
authors.lastname: Kim
mesh_terms: D000114:Acetylene / Q000031:analogs & derivatives* / Q000737:chemistry*; D003124:Colorimetry / Q000379:methods*; D005231:Fatty Acids, Unsaturated / Q000737:chemistry*; D006358:Hot Temperature; D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D008081:Liposomes / Q000737:chemistry; D046911:Macromolecular Substances; D000078789:Polyacetylene Polymer; D011108:Polymers / Q000737:chemistry*; D053279:Polyynes; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: C493048:10, 12-pentacosadiynoic acid; D005231:Fatty Acids, Unsaturated; D008081:Liposomes; D046911:Macromolecular Substances; D000078789:Polyacetylene Polymer; D011108:Polymers; D053279:Polyynes; C082361:polydiacetylene; D000114:Acetylene