RAP opportunity at National Institute of Standards and Technology NIST
Model Polymer Gels and Networks for Rational Sustainable Design
Location
Material Measurement Laboratory, Materials Science and Engineering Division
opportunity location
50.64.21.B8284 Gaithersburg, MD
NIST only participates in the February and August reviews.
Advisers
name email phone
Kathryn L. Beers [email protected] 202-578-8353
Edwin Pak-Nin Chan [email protected] 301.975.5228
Sara Orski [email protected] 301-975-4671
Description
Understanding the structure and mechanical properties of polymer networks is critical to a variety of soft material applications ranging from sustainability to impact mitigation. The polymer chemistry and structure of these entangled materials are essential to defining their mechanical and (re)use properties, yet the specific relationships are not well established, particularly as bonds break and the network dynamically transitions to a collection of discrete polymer chains. Model polymer networks, with well-defined chemistry and architecture, are needed to carry out quantitative measurements to establish design principles for programmable disentanglement or dissociation of network materials. We are interested in studying the structure and mechanical properties of polymer networks with defined molecular topologies (functionality, branching, and molecular mass distribution), as well as dynamic or reversible polymer chemistry that introduce labile sites vulnerable to catalysis and stimuli-responsive chain cleavage. Experimental methods for this opportunity include gel-permeation chromatography, nuclear magnetic resonance, small angle neutron and x-ray scattering, quasi-static mechanical testing, and high-rate impact testing.
key words
Polymer networks and gels; Polymer; Mechanical testing; High rate impact testing; Controlled polymerization;
Eligibility
Citizenship: Open to U.S. citizens
Level: Open to Postdoctoral applicants
Stipend
Base Stipend Travel Allotment Supplementation
$82,764.00 $3,000.00
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