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Title: Controlled manipulation of elastomers with radiation: Insights from multiquantum nuclear-magnetic-resonance data and mechanical measurements

Abstract

Filled and cross-linked elastomeric rubbers are versatile network materials with a multitude of applications ranging from artificial organs and biomedical devices to cushions, coatings, adhesives, interconnects, and seismic-isolation, thermal, and electrical barriers. External factors such as mechanical stress, temperature fluctuations, or radiation are known to create chemical changes in such materials that can directly affect the molecular weight distribution (MWD) of the polymer between cross-links and alter the structural and mechanical properties. From a materials science point of view it is highly desirable to understand, affect, and manipulate such property changes in a controlled manner. Unfortunately, that has not yet been possible due to the lack of experimental characterization of such networks under controlled environments. In this work we expose a known rubber material to controlled dosages of {gamma} radiation and utilize a newly developed multiquantum nuclear-magnetic-resonance technique to characterize the MWD as a function of radiation. We show that such data along with mechanical stress-strain measurements are amenable to accurate analysis by simple network models and yield important insights into radiation-induced molecular-level processes.

Authors:
; ; ; ; ; ;  [1]
  1. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
Publication Date:
OSTI Identifier:
21560069
Resource Type:
Journal Article
Journal Name:
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)
Additional Journal Information:
Journal Volume: 83; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevE.83.031802; (c) 2011 American Institute of Physics; Journal ID: ISSN 1539-3755
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADHESIVES; COATINGS; FLUCTUATIONS; GAMMA RADIATION; MECHANICAL PROPERTIES; MOLECULAR WEIGHT; NUCLEAR MAGNETIC RESONANCE; RADIATION EFFECTS; RUBBERS; SEISMIC ISOLATION; STRAINS; STRESSES; ELASTOMERS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; MAGNETIC RESONANCE; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; RADIATIONS; RESONANCE; VARIATIONS

Citation Formats

Maiti, A, Weisgraber, T, Dinh, L N, Gee, R H, Wilson, T, Chinn, S, and Maxwell, R S. Controlled manipulation of elastomers with radiation: Insights from multiquantum nuclear-magnetic-resonance data and mechanical measurements. United States: N. p., 2011. Web. doi:10.1103/PHYSREVE.83.031802.
Maiti, A, Weisgraber, T, Dinh, L N, Gee, R H, Wilson, T, Chinn, S, & Maxwell, R S. Controlled manipulation of elastomers with radiation: Insights from multiquantum nuclear-magnetic-resonance data and mechanical measurements. United States. https://doi.org/10.1103/PHYSREVE.83.031802
Maiti, A, Weisgraber, T, Dinh, L N, Gee, R H, Wilson, T, Chinn, S, and Maxwell, R S. 2011. "Controlled manipulation of elastomers with radiation: Insights from multiquantum nuclear-magnetic-resonance data and mechanical measurements". United States. https://doi.org/10.1103/PHYSREVE.83.031802.
@article{osti_21560069,
title = {Controlled manipulation of elastomers with radiation: Insights from multiquantum nuclear-magnetic-resonance data and mechanical measurements},
author = {Maiti, A and Weisgraber, T and Dinh, L N and Gee, R H and Wilson, T and Chinn, S and Maxwell, R S},
abstractNote = {Filled and cross-linked elastomeric rubbers are versatile network materials with a multitude of applications ranging from artificial organs and biomedical devices to cushions, coatings, adhesives, interconnects, and seismic-isolation, thermal, and electrical barriers. External factors such as mechanical stress, temperature fluctuations, or radiation are known to create chemical changes in such materials that can directly affect the molecular weight distribution (MWD) of the polymer between cross-links and alter the structural and mechanical properties. From a materials science point of view it is highly desirable to understand, affect, and manipulate such property changes in a controlled manner. Unfortunately, that has not yet been possible due to the lack of experimental characterization of such networks under controlled environments. In this work we expose a known rubber material to controlled dosages of {gamma} radiation and utilize a newly developed multiquantum nuclear-magnetic-resonance technique to characterize the MWD as a function of radiation. We show that such data along with mechanical stress-strain measurements are amenable to accurate analysis by simple network models and yield important insights into radiation-induced molecular-level processes.},
doi = {10.1103/PHYSREVE.83.031802},
url = {https://www.osti.gov/biblio/21560069}, journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)},
issn = {1539-3755},
number = 3,
volume = 83,
place = {United States},
year = {Tue Mar 15 00:00:00 EDT 2011},
month = {Tue Mar 15 00:00:00 EDT 2011}
}