The Resource Fundamental properties of colloidal unimolecular polymer particles, by Minghang Chen

Fundamental properties of colloidal unimolecular polymer particles, by Minghang Chen

Label
Fundamental properties of colloidal unimolecular polymer particles
Title
Fundamental properties of colloidal unimolecular polymer particles
Statement of responsibility
by Minghang Chen
Creator
Author
Subject
Language
eng
Summary
"Colloidal Unimolecular Polymer (CUP) particles are a new genre of material formed by self-assembly into spheroidal particles due to the effect of hydrophilic/hydrophobic interactions of the polymer with a change in the solvent. The particle sizes were characterized by means of Dynamic Light Scattering with corrected viscosities instead of water's viscosity. The distribution of particle size agreed well with the distribution of molecular weight proving that the polymer had undergone unimolecular collapse. The rheology study shows the presence of surface water and its significant effect on the rheology. The primary and secondary electroviscous effects were also found to play roles when the suspension was in dilute to semi-dilute regime. When the volume fraction of particles were higher than 0.15, the rheology behavior fit well with Krieger-Dougherty equation. The thickness and the density of surface water were calculated to be 0.57nm and 1.0688 g/cm3 respectively. When small amounts of external electrolytes were added, (<2% by weight), the viscosity of the suspensions (<0.06 by volume) dropped due to screening effect of the added electrolytes. When the volume fraction of the suspension increased or the addition of electrolytes increased, the viscosities of suspension increased sharply at different critical points. The CUPs showed remarkable surface activities, which increase with molecular weights. The calculated average equivalent area occupied by each particle was much smaller than that of the largest cross-section of the particle indicating that the liquid-solid interface contact angle of the particle was quite low, close to 10°"--Abstract, page iv
Related
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1980-
http://library.link/vocab/creatorName
Chen, Minghang
Degree
Ph. D.
Dissertation year
2013.
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Polymer colloids
  • Polymer colloids
  • Polyacrylamide gel electrophoresis
  • Polymers
  • Quasielastic light scattering
  • Particle size determination
  • Surface tension
  • Polyelectrolytes
  • Macromolecules
  • Biomolecules
  • Structure-activity relationships (Biochemistry)
Label
Fundamental properties of colloidal unimolecular polymer particles, by Minghang Chen
Instantiates
Publication
Note
  • Vita
  • "This dissertation has been prepared in the form of five papers for publication"--Page iii
Bibliography note
Includes bibliographic references
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
txt
Content type MARC source
rdacontent.
Control code
858610228
Extent
1 online resource (xix, 147 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia.
Media type code
c
Other physical details
color illustrations.
Specific material designation
remote
System control number
(OCoLC)858610228
Label
Fundamental properties of colloidal unimolecular polymer particles, by Minghang Chen
Publication
Note
  • Vita
  • "This dissertation has been prepared in the form of five papers for publication"--Page iii
Bibliography note
Includes bibliographic references
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
txt
Content type MARC source
rdacontent.
Control code
858610228
Extent
1 online resource (xix, 147 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia.
Media type code
c
Other physical details
color illustrations.
Specific material designation
remote
System control number
(OCoLC)858610228

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