1st Place, 91st Annual Meeting, Oct 2019, Raleigh - Mona Kanso
1st Place, 91st Annual Meeting, Oct 2019, Raleigh
Macromolecular architecture and complex viscosity Mona Kanso, Alan J. Giacomin, Chaimongkol Saengow, and Jourdain H. Piette
Chemical Engineering, Queen’s University, Kingston, Ontario, Canada
Paper Number
PO37
Session
Poster Session
Title
Macromolecular architecture and complex viscosity
Presentation Date and Time
October 23, 2019 (Wednesday) 6:30
Track / Room
Poster Session / Ballroom C on 4th floor
Authors (Click on name to view author profile)
Author and Affiliation Lines (in printed abstract book)
Mona Kanso, Alan J. Giacomin, Chaimongkol Saengow, and Jourdain H. Piette
Chemical Engineering, Queen’s University, Kingston, Ontario, Canada
Speaker / Presenter
Kanso, Mona
Text of Abstract
General rigid bead-rod theory [Hassager, J Chem Phys, 60, 4001 (1974)] explains polymer viscoelasticity from macromolecular orientation. By means of general rigid bead-rod theory, we relate the complex viscosity of polymeric liquids to the architecture of axisymmetric macromolecules. In this work, we explore the zeroshear and complex viscosities of 24 different axisymmetric polymer configurations. When non-dimensionalized with the zero-shear viscosity, the complex viscosity depends on the dimensionless frequency and the sole dimensionless architectural parameter, the macromolecular lopsidedness. In this work, in this way, we compare and contrast the elastic and viscous components of the complex viscosities of macromolecular chains that are straight, branched, ringed, or star-branched. We explore the effects of branch position along a straight chain, branched-chain backbone length, branched-chain branch-functionality, branch spacing along a straight chain (including pom-poms), the number of branches along a straight chain, ringed polymer perimeter, branch-functionality in planar stars, and branch dimensionality.