Dissertation > Excellent graduate degree dissertation topics show

Photo-responsive Supramolecular Polymer Based on p-Sulfonatocalix [4] Arene and β-cyclodextrin Derivatives

Author: LiWeiFeng
Tutor: TianHe
School: East China University of Science and Technology
Course: Applied Chemistry
Keywords: Self-assembly Cyclodextrin Calixarene Pseudorotaxane
CLC: O636.12
Type: Master's thesis
Year: 2012
Downloads: 87
Quote: 0
Read: Download Dissertation

Abstract


Molecular self-assembly is one of the hot topics in supramolecular chemistry. Cyclodextrin and calixarene, considered as two most important hosts, have been well explored in molecular recognization and self-assembly. A new water-soluble supramolecular polymer based on p-sulfonatocalix[4]arene derivative with an azobenzene unit substituted on the lower rim andβ-cyclodextrin derivative attached by viologen has been constructed. In aqueous solution, p-sulfonatocalix[4]arene derivative includes viologen unit through ionic interactions while the cavity ofβ-cyclodextrin derivative includes azobenzene unit through hydrophobic effect. Due to this co-interactions, a linear self-assembling polymer can be constructed by adding the p-sulfonatocalix[4]arene derivative andβ-cyclodextrin derivative together with mole ratio of 1:1 in aqueous solution. The trans-configurated azobenzene unit can be photoisomerized to cis-configuration by UV-irradiation. The association constant between cis-azobenzene andβ-CD derivative in aqueous solution is much smaller, so cis-azobenzene unit partly dethreads from the cavity of P-cyclodextrin derivative, thus dissembles the polymer. It is a self-assembly polymer controlled by light. Each monomer is a pseudorotaxane withβ-cyclodextrin acting as a stopper.

Related Dissertations

  1. Characterization and Properties of capsaicin / CD system,TQ450.1
  2. The Research of Supramolecular Complexes of Edaravone and Cyclodextrins,R943
  3. Study of Cyclodextrin-induced Non-deoxygenated Room Temperature Phosphorescence of Fluorene and Aminofluorene,O657.3
  4. Containing pyrazoline chromophore small molecule and polymer synthesis and fluorescent properties of,O631.3
  5. 3 - hydroxybutyrate , and 3 - ( 2,2,2 - trifluoro- acetoxy ) ethyl butyrate, and PMBCD chiral Theoretical Study,O621.25
  6. Based magnetic fluid assembled hollow magnetic carbon microspheres and functional complexes,TB383.4
  7. Synthesis and Characterization of Polyaniline Micro/nano Structure and Its Composites,TB383.1
  8. The Process of Cysteine Self-assembly on Gold Nanoparticle Modified Electrodes and Their Application,TB383.1
  9. Synthesis and Self-assembly of Dendrimer and Their In-situ Modification of PMMA,O631.3
  10. Synthesis of P-sulfocalix[4]arene and Study on Interaction Between P-sulfocalix[4]arene and Human Serum Albumin,O621.25
  11. Fabrication and Property of Films Based on Polyoxometalates and Dyes,O611.3
  12. Synthesis and Optoelectrical Properties of Organic/inorganic Hybrid Perovskite （RNH3）2（CH3NH3）n-1MnX3n+1,O627
  13. Research on Combinatorial Optimization Problem Based on DNA Self-Assemble,TP399-C8
  14. Self-Assembly and Photo-Responsive Behavior of Azobenzene-Based Copolymer,O631.3
  15. Based on the design and synthesis of supramolecular self-assembly of light-control drug release system,TQ460.1
  16. Implantation of Mesenchymal Stem Cells (MSCs) Carried by LINK-N/RADA-16 to the Intervertebral Disc : A Study to Repair the Disc,R687.3
  17. Lactic acid -based copolymer / vermiculite ceramic composites and properties of,TB332
  18. Carbon nanotubes in the polymer nanofiber surface assembly and cell activity evaluation,R318.08
  19. PVA / carbon nanotube nano- fiber mat Preparation and Self-Assembly,TB383.1
  20. Temperature-sensitive polypeptide polymer design, synthesis and properties,O631.3
  21. Gold nanoparticles self-assembly behavior of,TB383.1

CLC: > Mathematical sciences and chemical > Chemistry > Polymer chemistry ( polymer ) > Natural polymers ( polymer ) > Polymer polysaccharides > Starch, dextrin,glycogen, inulin
© 2012 www.DissertationTopic.Net  Mobile