Dissertation > Excellent graduate degree dissertation topics show

Study on Synthesis and Performance of Stearic Monoethanolamide Polyoxyethylene Ether Glucopyranoside

Author: ZhangLiYun
Tutor: ZhouYongHong
School: Chinese Academy of Forestry
Course: Applied Chemistry
Keywords: Stearic acid glucose ethylene oxide monoethanol amine surfactant
CLC: TQ423.2
Type: Master's thesis
Year: 2012
Downloads: 82
Quote: 0
Read: Download Dissertation

Abstract


From the point of effectively modification of alkyl polyglycosides （APG）, amide bondand polyoxyethylene were induced between alkyl radical and glucose. Non-ionic surfactantstearic ethanolamide polyoxyethylene ether glucopyranosides were synthesized and theirsurface physicochemical properties and absorbing and keeping moisture rate were investigated,as well. The results showed that they had good keeping moisture rate. What we did providedthe theory basis to develop APG derivatives, too.1. Different polymerization degree of stearic ethanolamide polyoxyethylenes ether weresynthesized from stearic acid, monoethanolamine and ethylene oxide in two steps usingpotassium hydroxide as catalyst. The optimal conditions were obtained. The polymerizationwas carried out in steps, and the polymeric temperature was140℃. Their structure wereidentified using IR，1H NMR. Surface physicochemical properties of products with differentpolymerization degree of EO were determined as well. When EO degree was5surface tensionreached26.8mN/m, CMC8×10-4g/mL.2. Stearic ethanolamide polyoxyethylene ether glucopyranoside with differentpolymerization degree （n） of epoxyethane （EO） were synthesized by acetylation-alcoholysisreaction. First, the glucose was activated by acetic anhydride with the temperature was120℃and the reaction time was2h，when the reaction was over the product was purified byalcohol with the temperature was0℃.Second, the product of first step with BF3·Et2O reactedat0℃in6h. Third, the product of second step was alcoholysised by methyl alcohol to obtainthe final product. Their structure were identified using IR，1H NMR. The relationship betweendegree of polymerization of EO and surface physicochemical properties of products wasstudied.3. Regarding the absorbing and keeping moisture performance, although the absorbingmoisture performace of glueoside was in inferior to glycerine. The properties of keeping moisture performace of glueoside was better than glycerine. Therefore, it was respected toreplace glycerine and become a new member in the humectant.

Related Dissertations

  1. Application of Additives’ Drag Reducing Technology in District Heating System,TU995
  2. Polyethylenimine Conjugated Stearic Acid-g-chitosan Oligosaccharide Micelles for Antitumor Gene Therapy,R450
  3. Effectiveness Comparison of Different Solvents in Organochlorine Pesticide (OCP)-Contaminated Soil Flushing and Optimization of Flushing Parameters,X592
  4. Studies on the Isolation of Oil-Degrading Bacteria with Biosurfactant Production and Their Characteristics,X172
  5. Expression of Glucose Oxidase Gene from Aspergillus Niger Z-25 in Pichia Pastoris,Q78
  6. The Changes of Intimal Macrophages, Smooth Muscle Cells, Collagen, and Cpt-Ⅰ, GLUT-4 of Vascular Media in Human Lower Limb Artery with Atherosclerotic Stenosis,R543.5
  7. Effect of High Glucose on Chemokine Ligand 16 (CXCL16) Expression and Secretion in THP-1 Macrophages and Intervention of Aspirin in the Activity,R587.2
  8. Effect of β-Casomorphin7 or Casein Peptides on Blood Glucose and Oxidative Stress of the Diabetic Rats,R587.1
  9. Effects of Angiopoietin-1 on Vascular Angiogenesis Regulator Factor in Human Umbilical Vein Endothelial Cells Cultured with High Glucose,R587.2
  10. Efficacy and Safety of Biphasic Insulin Aspart 30 Once-daily Treatment in Patients with Type 2 Diabetes,R587.1
  11. The Blood Glucose Control and Influencing Factors in Type 2 Diabetic Patients with Oral Hypoglycemic Agents,R587.1
  12. Effect of β-Casomorphin-5 on Blood Glucose and Oxidative Stress of Diabetic Rats,R587.1
  13. Adsortions of Dye by Modified Activated Carbon and Heavy Metals by Rice Husk-Based Activated Carbon,X703
  14. Determination of Organophosphorus Pesticides Residues by Fluorescence Method and Its Application,O657.39
  15. Experimental Study of Wettability of Coal and New Wetting Agent,TD714
  16. Expression and Antibody Preparation of sglt1 from Cyprinus CarpioL.,S917.4
  17. Effects of Angiopoietin-1 on Intercellular Junctional Protein in Human Umbilical Vein Endothelial Cells Cultured with High Glucose,R363
  18. Effects of Stress High Glucose on Prognosis Non-diabetes Patients with Myocardial Infraction,R542.22
  19. The Mechanism and Role of Cavelion-1 in Oxidative Stress Induced by Intermittent High Glucose in Endothelial Cells,R587.1
  20. The Influences of Blood Glucose Levels on the Function of Neutrophil-moncyte Cell Line HL-60 Cells,R587.1
  21. The Injury Induced by High Glucose and with the Correlation of SelS and PKC Signal Transduction Pathway,R587.1

CLC: > Industrial Technology > Chemical Industry > Reagents and the production of pure chemicals > Surfactant > Non-ionic surfactants
© 2012 www.DissertationTopic.Net  Mobile