Analysis of Small Angle Neutron Scattering Spectra from Deformed Polymers with Spherical Harmonic Expansion Method and a Network Model

Published

November 13, 2018

Author(s)

Zhi-Yuan Wang, Dejia Kong, Lincan Yang, Hongwei Ma, Fengmei Su, Kanae N. Ito, Yun Liu, Xuewu Wang, Zhe Wang

Abstract

In this paper, we combine the recently proposed spherical harmonic expansion (SHE) method [Phys. Rev. X 2017, 7, 031003] with a modified network model to analyze the small-angle neutron scattering (SANS) spectra from deformed entangled polymers. Focusing on the leading anisotropic component and the isotropic component in the SHE, the analysis gives a reliable value of the stretch ratio of the end-to-end vector, and a reasonable estimation of the radius of gyration, of a single chain in polymers undergoing uniaxial deformation and relaxation. Moreover, it provides a practical way to evaluate the stress of deformed entangled polymers with the SANS spectra from a viewpoint of rubber elasticity.

Citation

Macromolecules

Volume

51

Issue

21

Pub Type

Journals

Download Paper

https://doi.org/10.1021/acs.macromol.8b01913

Local Download

Keywords

small angle neutron scattering, polymer

Citation

Wang, Z. , Kong, D. , Yang, L. , Ma, H. , Su, F. , Ito, K. , Liu, Y. , Wang, X. and Wang, Z. (2018), Analysis of Small Angle Neutron Scattering Spectra from Deformed Polymers with Spherical Harmonic Expansion Method and a Network Model, Macromolecules, [online], https://doi.org/10.1021/acs.macromol.8b01913, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926985 (Accessed November 21, 2024)