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Lévy flights near the melting transition of graphene and silicene

Year: 2025
Type: article
DOI: 10.1103/5pf8-wc8p
Authors: Md. Rakib Hassan, Jack F. Douglas, Francis W. Starr
Language: English
Open Access status: closed
Award: PURPOSE: THE PURPOSE OF THE PROJECT IS TO DETERMINE THE FACTORS THAT INFLUENCE POLYMER MISCIBILITY, PROCESSIBILITY, AND POLYMER DEGRADATION IN THE ENVIRONMENT TO AID IN THE DEVELOPMENT OF SUSTAINABLE POLYMER MATERIALS. ACTIVITIES TO BE PERFORMED: THE RESEARCHERS WILL USE MOLECULAR MODELING TO EXAMINE TWO APPROACHES TO IMPROVE POLYMER COMPATIBILITY. FIRST, THEY WILL CONSIDER ADDITIVES THAT FORM DYNAMIC CROSS-LINKS IN MIXTURES OF COMMODITY POLYMERS THAT CAN ENHANCE MISCIBILITY. SECOND, THEY WILL DETERMINE HOW THE ADDITION OF CHARGED GROUPS TO LOW DIELECTRIC POLYMERS CAN IMPROVE THEIR COMPATIBILIZATION. EXPECTED OUTCOMES: THE RESEARCHERS WILL DEVELOP STRATEGIES FOR POLYMER ADDITIVES OR POLYMER FUNCTIONALIZATION THAT CAN ALTER THE MISCIBILITY AND PROCESSABILITY OF COMMODITY POLYMER MATERIALS FOR ENHANCED RECYCLABILITY AS WELL AS MODIFIED MECHANICAL AND RHEOLOGICAL PROPERTIES. THESE STRATEGIES CAN THEN BE TESTED EXPERIMENTALLY AS PART OF THE CIRCULAR ECONOMY PROJECT AT NIST.INTENDED BENEFICIARIES: THE RESEARCH PROGRAM WILL PROVIDE DIRECT SUPPORT TO THEORETICAL MODELING IN THE CIRCULAR ECONOMY PROGRAM AT NIST. THE SPECIFIC RESEARCH PROJECT IS CONCERNED WITH COMPUTATIONAL STUDIES OF PHYSICAL FACTORS GOVERNING THE SOLUBILITY OF POLYMER MIXTURES AND WATER-SOLUBLE POLYMERS IN CONNECTION WITH THE DEVELOPMENT OF NEW STRATEGIES FOR RECYCLING POLYMER MATERIALS, AND MATERIAL DESIGN AND PROCESSING IDEAS RELATING TO THE DEVELOPMENT OF MATERIALS THAT WILL DEGRADE IN THE ENVIRONMENT ON A TIMESCALE COMPARABLE TO NATURAL POLYMER MATERIALS. THIS RESEARCH EFFORT SERVES BOTH THE SHORT TERM NEEDS OF THE NIST RESEARCH PROGRAM, AND THE BROADER LONG TERM NEEDS OF SOCIETY TO DEVELOP MORE SUSTAINABLE POLYMER MATERIALS AND TO REDUCE ENVIRONMENTAL DEGRADATION FROM RAPIDLY ACCUMULATING POLYMER ENVIRONMENTAL WASTE. THIS RESEARCH EFFORT ALSO TARGETS THE NEEDS OF US INDUSTRY IN RELATION TO PROVIDING GUIDANCE ON THE DEVELOPMENT OF VALUABLE NEW MATERIALS TO REPLACE CONVENTIONAL POLLUTING COMMODITY POLYMER MATERIALS.SUBRECIPIENT ACTIVITIES: THE RECIPIENT DOES NOT INTEND TO SUBAWARD FUNDS.
OpenAlex ID: W4417268259
FWCI: 0.208
Cites: 50
Cited by: 1
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