Dissertation > Excellent graduate degree dissertation topics show

Process for Controlling Peptization of Sulfur Modified Polychloroprene Latex and Synthesis of Graft Copolymer by Controlled/Living Radical Polymerization

Author: ChenYun
Tutor: FuZhiFeng
School: Beijing University of Chemical Technology
Course: Materials Science
Keywords: Neoprene Chain scission Atom transfer radical polymerization Graft polymer
CLC: TQ330
Type: Master's thesis
Year: 2004
Downloads: 150
Quote: 0
Read: Download Dissertation


In this thesis, the the the chain scission neoprene ATRP synthesis of chloroprene rubber graft copolymer . In study of neoprene scission , the first in the for TETD / SDC scission system in the join chain scission reaction with oxidizing potassium persulfate to suppress neoprene influence of temperature , added in an amount of SDC pair potassium persulfate suppression chain scission reaction. TETD single chain scission system chloroprene rubber latex was added to the potassium persulfate , potassium persulfate, also have an effective inhibition of neoprene scission reaction . Temperature inhibit scission role on the impact . Potassium persulfate is used in industrial GLUES TETD scission system, the same can be effectively controlled Mooney viscosity. Having oxidizing ammonium persulfate and hydrogen peroxide and its composite system instead of potassium persulfate, and also can effectively inhibit the chain scission of the reaction , to thereby control the Mooney viscosity and enhance the stability of the chloroprene rubber . Considering the composite of ammonium sulfate and hydrogen peroxide should be used to inhibit the chain scission system . Graft co- polymerization of the main chain in the synthetic chloroprene rubber , CuCl / PMDETA catalyst system as a model , with small molecules, allyl chloride , respectively, cyclohexanone, toluene , styrene and methyl acrylate atom transfer radical polymerization of methyl esters . Confirmed that allyl chloride can lead to styrene , methyl methacrylate polymerization . Found two solvents , styrene polymerization to the controlled poly Beijing University of Chemical master's degree Lun Yihe MMA polymerization uncontrollability . Thereafter , chloroprene rubber as a macromolecular initiator for graft copolymerization of styrene, methyl methacrylate cool initiator in both solvents . Neoprene degradation reactions occur in the reaction process , so that the decline in the molecular weight of the obtained polymer .

Related Dissertations

  1. Synthesis and Characterization of High-performance Polyacrylonitrile,O631.3
  2. Polymerization of GMA by ATRP and Stereoregularity of PGMA,O631.3
  3. Synthesis and Responsive Behavior of Amphiphilic Azobenzene Functionalized Block Copolymers,O631.3
  4. Preparation of Functional Miktoarm Star-block Copolymers Via Combination of Lfrp and "Click Chemistry" Techniques,O631.3
  5. Thermosetting epoxy microsphere preparation, characterization and surface functionalization of,O631.3
  6. Investigation on Light and Heat-induced Spin Transition Polystyrene (PS) Composites,TB332
  7. Basic Study of Photosensitive Functional Azopolymers as the Adsorption Materials of Protein,O631.3
  8. Research on Phosphory Choline (PC) Bionic Modified Medical Dacron Materials and Anticoagulant Property,R318.08
  9. Polymerization of Butyl Methacrylate’s Activators Generated by Electron Transfer ATRP in Miniemulsion,O631.5
  10. Preparation pH/Thermo-Responsive PET Track-Etched Membranes by Surface-Initiated Atom Transfer Radical Polymerization,O631.3
  11. Surface-modification of Silica Carbide Nanoparticles Via Reverse Atom Transfer Radical Polymerization,TB383.1
  12. Study on Blending Modeified Cholroprene Rubber with TPI,TQ333.5
  13. Structure and properties of the binary blend rubber / organic montmorillonite nanocomposites,TB383.1
  14. The Technical Study of ShanXiang Group’s Sewage Plant Renovation and Reuse of Reclaimed Water,X703
  15. Free radical addition reaction and the carbon nanotube modified application graphene,TB383.1
  16. Preparation and Characterization of Nanoparticles Based on Amphiphilic Star-Branched SPLA-b-PMPC Copolymers,O631.3
  17. Preparation of Molecularly Imprinted Polymers Via Atom Transfer Radical Polymerization,O631.3
  18. Synthesis and Thermoresponsive Property of End-Functionalized Poly(N-isopropylacrylamide) with Cholesteryl Group,O633.22
  19. Synthesis and Characterization of Star Mesogen-Jacketed Liquid Crystal Polymerand Related Block Copolymer,O753.2
  20. Automotive neoprene trimming V-belt life research,U465
  21. Reverse atom transfer polymerization of acrylamide of the water system research,TQ316.3

CLC: > Industrial Technology > Chemical Industry > Rubber Industry > General issues
© 2012 www.DissertationTopic.Net  Mobile