含剛性片段羧酸衍生物兩親分子在界面及溶液中的組裝.pdf

1、贛南師范學(xué)院碩士學(xué)位論文獗創(chuàng)鮭聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進行的研究I作及取 得的研究成果。除了文 中特別加以標(biāo)注和致謝的地方外 夕論文中不包含其他入 已經(jīng)發(fā)袤或撰寫過的研究成果,也不包含為獲得贛南師范學(xué)院或其他教育機構(gòu)的學(xué)位或證書雨 使用過 的材料。 與我—同工作的同志對本研究所做的任何貢獻均 已在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名:宀丨 拓楣} ∶芳 簽字 臼期 : 刀 z r 年 ‘ 月 7日學(xué)

2、位論文版搬馥用授權(quán)書本學(xué)位論文作者完全了解贛南師范學(xué)院有關(guān)保留、 使用學(xué)位論文的規(guī)定,有 權(quán)保留并向國家有關(guān)部 門或機構(gòu)送交論文的復(fù)印件和磁盤,允許論文被查閱和借閱。本人授權(quán)贛南師范學(xué)院可 以將學(xué)位論文的全部或部分 內(nèi)容編入有關(guān)數(shù)據(jù)庫進行檢索,可 以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。(保密的學(xué)位論文在解密后適用本授權(quán)書 )學(xué)位論文作者簽名:朝 鷸 琿 導(dǎo)師簽名 :簽 字日 期: 冫丨 J年 犭月7 日 簽字 日期:M贛南

3、師范學(xué)院碩士學(xué)位論文IIAbstractIn the prepsent work, a series of carboxylic-acid-derived amphiphiles containing Schiff base orAzobenzene group (D-π-A) were synthesized, these derivatives have been the focus of nonlinear opticalstud

4、ies for potential applications such as information processing, optical swiching, telecommunication anddata storage. The interactions between the headgroup of carboxylic-acid-derived amphiphiles containingSchiff base or A

5、zobenzene group and subphases were investaged using surface pressure (π)-area (A)isotherms. Interfacial coordination, molecular structure, orientation of alkyl chain and photoisomerizationof the monolayers of Schiff base

6、 or Azobenzene amphiphiles were studied systematically using UV-vis,FT-IR, and XRD. Meanwhile the assembled structure, microscopic structure and formation mechanism ofAzobenzene-derived amphiphiles in organic solvent wer

7、e also investigated.1 、 The synthesis, characterization and surface behavior of the monolayers of carboxylic-acid-derivedamphiphiles containing Schiff base or Azobenzene groupA series of carboxylic-acid-derived amphiphil

8、es containing Schiff base or Azobenzene group weresynthesized and characterized by FT-IR and 1H-NMR. Both of the C16SBC3H6COOH andC16AzoC3H6COOH amphiphiles can form stable monolayers, the presence of metal ions in the s

9、ubphasesgave rise to the expansion or condensation of the monolayer to different extents, which suggested theformation of metal complexes between the headgroups and metal ions.2 、 Interfacial Coordination, Molecular Orie

10、ntation and photoisomerization of carboxylic-acid-derivedamphiphiles containing Schiff base or Azobenzene groupThe molecular structure of LB films of carboxylic-acid-derived amphiphiles containing Schiff base orAzobenzen

11、e group on pure water and ion-containing subphase were investigate by UV-vis and FTIR. ForC16SBC3H6COOH, the headgroup can coordinate with ion in the subphase, which results in the change oftwist angle of Schiff base seg

12、ment. The alkyl chains are oriented at an angle of about 41.0°, 35.9°, 41.1°,40.4°, 39.5° and 40.7° for water, Ag+, Cd2+, Cu2+, La3+, Ni2+ with respect to the monolayer normal. ForC16AzoC3H6

13、COOH, the headgroup can also coordinate with ion in the subphase, the twist angle can notchange in comparison with amphiphiles containing Schiff base segment due to the planar structure ofAzobenzene group. The photoisome

14、rization can be observed after the UV (365 nm) irradiation. By thetheoretical calculation, the chain orietation angle of C16AzoC3H6COOH LB films with respect to themonolayer normal for H2O, Ag+, Cd2+, Cu2+, La3+ and Ni2+

15、 is40.9°、44.8°、42.4°、41.2°、38.6° and 44.1°,respectively.3 、 The assembly structure, microscopic structure and formation mechanism of carboxylic-acid-derivedamphiphiles containing azobenzene