REVERSIBLY ACTIVATABLE DIACETYLENES AND THEIR USE AS COLOUR-FORMERS
申请人:DataLase Ltd
公开号:EP2678742B1
公开(公告)日:2018-08-29
[EN] REVERSIBLY ACTIVATABLE DIACETYLENES AND THEIR USE AS COLOUR-FORMERS<br/>[FR] DIACÉTYLÈNES ACTIVABLES DE FAÇON RÉVERSIBLE ET LEUR UTILISATION À TITRE DE CHROMOGÈNES
申请人:DATALASE LTD
公开号:WO2012114121A2
公开(公告)日:2012-08-30
A method of forming a coloured substrate, comprising applying to or incorporating within the substrate a diacetylene compound, and exposing the substrate to (i) a first, activating stimulus that converts the diacetylene compound from an unreactive to a reactive form, and (ii) a second stimulus that causes the reactive form of the diacetylene compound to polymerize and form the coloured substrate, wherein the diacetylene compound reverts to its unreactive form on removal of the activating stimulus and is of formula I: Y-C≡C-C≡C-(CH2)n-T-Q-Z (I) wherein: n = an odd integer; T = CO, CS or a bond; Q = NH, S, O, OCONH, NHCONH, NH-CHE-CONH, NHCOO or NHCSNH wherein E is H or a C-1-20 alkyl group; Z = H or a hydrocarbon group containing 1 to 20 carbon atoms; Y = H or any group comprising at least one carbon atom.
Self‐Assembly Behavior of Diacetylenic Acid Molecules upon Vapor Deposition: Odd–Even Effect on the Film Morphology
作者:Chiao‐Wei Tseng、Ding‐Chi Huang、Han‐Li Yang、Hsieh‐Cheng Lin、Fang‐Cheng Li、Chun‐Wei Pao、Yu‐Tai Tao
DOI:10.1002/chem.202002227
日期:2020.11.2
linear carboxylic acids containing diacetylenic units at different positions along the chain (C12H25(C≡C)2(CH2)nCOOH, n=7–11) were vacuum‐deposited on clean silica substrates. The morphologies of the initial films after UV irradiation were studied. A clear odd–eveneffect on the morphology of the initial film was observed in that, depending on the spacer length between the diacetylenic unit and carboxyl
一系列在链的不同位置包含二炔单元的线性羧酸(C 12 H 25(C≡C)2(CH 2)n COOH,n= 7-11)真空沉积在干净的二氧化硅基板上。研究了紫外线照射后初始薄膜的形貌。观察到对初始膜的形态有明显的奇偶影响,因为取决于二乙炔单元和羧基头基之间的间隔基长度,获得了酸性二聚体层的环或树枝状晶体。聚集过程的分子动力学模拟表明,两个竞争的分子间相互作用以及聚集方向都参与其中,并受奇数或偶数碳链长度的调节。通过在链的末端取代苯基或通过将羧基头基更改为酰胺基苯甲酸头基来进一步调节相互作用,会产生相似的奇偶效应,但具有不同的尺寸或趋势,可以类似地合理化。