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Filtering by: Keyword viscoelasticity Subject Materials Science

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Viscoelasticity and Fracture of Polyelectrolyte Gels and Suspensions

Description:

Solvent-rich polyelectrolyte complexes display a wide range of rheological properties, when different environmental parameters are applied. Due to the low energy barrier of the complexation (~10 kT), these materials possess tunable properties, with the states of these materials varying from Newtonian liquids to very tough hydrogels. This thesis aims to...

Keyword:

polyelectrolyte, thermo-thickening, fracture, gels, and viscoelasticity

Subject:

Materials Science

Creator:

Chen, Yaoyao

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

02/12/2020

Date Created:

2019-01-01

Resource Type:

Dissertation

Alternate Identifier:

etdadmin_upload_662844 and http://dissertations.umi.com/northwestern:14666
Multiscale Modeling of Thermoplastic Elastomers for Enhanced Mechanical Properties

Description:

To relate the mechanical responses of hard-soft copolymer systems with their microstructures, a coarse-grained molecular dynamics (CGMD) approach is employed. With the generic bead-spring polymer model mapped from atomistic simulations, this dissertation first studies the morphology of structures with various hard-soft compositions and interactions between hard beads. Following that, this...

Keyword:

coarse-grained molecular dynamics, local modulus, polyurea, micro-phase separation, interphase, and viscoelasticity

Subject:

Molecular physics, Materials Science, and Mechanical engineering

Creator:

Zhang, Min

Owner:

Scholarly Digital Publishing

Language:

en

Date Uploaded:

02/12/2020

Date Created:

2018-01-01

Resource Type:

Dissertation

Alternate Identifier:

http://dissertations.umi.com/northwestern:14464 and etdadmin_upload_626984

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Viscoelasticity and Fracture of Polyelectrolyte Gels and Suspensions

Multiscale Modeling of Thermoplastic Elastomers for Enhanced Mechanical Properties

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