Dissertation > Excellent graduate degree dissertation topics show

Synthesis and Fluorescence Behavior of a Thermoresponsive Polymer Ended with Fluorescent Group

Author: GuoYanZhen
Tutor: LiHongPing
School: Zhengzhou University
Course: Physical and chemical
Keywords: Temperature-sensitive polymer Reversible addition - fragmentation chain transfer polymerization Poly - N- isopropyl acrylamide Fluorescent probe
CLC: O631.3
Type: Master's thesis
Year: 2011
Downloads: 63
Quote: 0
Read: Download Dissertation

Abstract


In this thesis, synthesis temperature - sensitive polymer terminal fluorescent , and its fluorescence intensity with the temperature changes the nature of a preliminary study . On the one hand , through a series of simple organic reactions (including Knoevenagel reaction , Sonogashira reaction , Diels - Alder reaction ) synthesis of two novel fluorescent molecules 4 and 6 and NMR ( including 1H NMR , 13C NMR , 2D NMR ) infrared (FTIR) and mass spectrometry ( MS ) characterization confirmed its structure, while cultivating a single crystal of the two compounds , more intuitive has been successfully synthesized compounds 4 and 6 . After ethanol as solvent , the nature of the fluorescence (FL) and the light emitting performance of its ultraviolet-visible ( UV ) can be found in the conjugated structure of the compound 6 4 . On the other hand , in the living / controlled radical polymerization reversible addition - fragmentation chain transfer polymerization ( RAFT ) synthetic medium molecular weight and narrow molecular weight distribution poly - N- isopropyl acrylamide ( PNIPAM ) with magnetic resonance imaging ( 1H NMR ) , infrared (FTIR) and gel permeation chromatography (GPC) characterization of its structure and molecular weight . Then its end group functionalized with maleic anhydride ( MAH ) was successfully synthesized PNIPAM - MAH . Finally, the synthesis of PNIPAM -MAh with fluorescent molecules 4 and 6 at the same time carry out the acylation reaction , the successful synthesis of the end of the fluorescent temperature sensitive polymer PM- 6 , and its low critical solution temperature (LCST) and fluorescence the nature of the intensity varies with temperature . The temperature -sensitive polymer is expected to be applied as a temperature control switch in the drug delivery systems .

Related Dissertations

  1. Purificiation of Cryptococcus Laurentii Lipase and Rapid Measurement of Lipase Thermostability,Q78
  2. Based on open- loop effects of heavy metals rhodamine fluorescence probe,X830.2
  3. Genetically Encoded Fluorescent Sensor for Copper Ion,Q78
  4. Study on the Preparation and Performance of the New Fluorescent NO Fiber Optic Biosensor,TP212.3
  5. New amine fluorescent reagents in high-performance liquid - Mass,O657.72
  6. Synthesis and Application of a New Luminescent β-Diketonate-Europium(Ⅲ) Complex,O627.3
  7. Aptamer selection process initially explored detection method,Q78
  8. Fluorescent probe method to study the mechanism of action of the drug and biological macromolecules and their determination,R346
  9. Preparation of the New Water-Soluble CdTe Quantum Dots Probe and Their Application on MDR Study,TQ617.3
  10. Heteroaromatics Fluorescent Probes: Design, Synthesis and Photochemical Activity,O621.3
  11. The composite hydrogel the PNIPA/Fe_3O_4 irradiation Preparation and Characterization,TB332
  12. Containing silver nanoparticles pH stimuli-responsive nanocomposite hydrogels,TB383.1
  13. Synthesis and Analysis of Coumarin-fluorescent Probes,O657.3
  14. Property and Application of Poly (N-isopropylacrylamide)-grafted Silica in High-performance Liquid Chromatography,O657.7
  15. Study on Gelation of Thermosensitive Polymer Nanogel Dispersion,TB383.1
  16. Rare Earth - Drug Complexes fluorescent probes new System and Its Analytical Application,R91
  17. Blue fox parvovirus strains Tai'an molecular characteristics and its TaqMan quantitative PCR method for detection,S852.65
  18. Study on Fluorescent Method for the Determination of Hydroxyl and Superoxide Anion Radicals,R341
  19. A Study of a Novel Fluorogenic Probe for Monoamine Oxidase,R341
  20. Study on Synthesis, Properties and Structure of Comb-like Acrylamide-based Copolymers,O631.3

CLC: > Mathematical sciences and chemical > Chemistry > Polymer chemistry ( polymer ) > Polymer physics and physical chemistry of polymers > The chemical nature of polymers
© 2012 www.DissertationTopic.Net  Mobile