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Supramolecular ionics: electric charge partition within polymers and other non-conducting solids Anais da ABC (AABC)
GALEMBECK,FERNANDO; COSTA,CARLOS A. R.; GALEMBECK,ANDRÉ; SILVA,MARIA DO CARMO V. M..
Electrostatic phenomena in insulators have been known for the past four centuries, but many related questions are still unanswered, for instance: which are the charge-bearing species in an electrified organic polymer, how are the charges spatially distributed and which is the contribution of the electrically charged domains to the overall polymer properties? New scanning probe microscopies were recently introduced, and these are suitable for the mapping of electric potentials across a solid sample thus providing some answers for the previous questions. In this work, we report results obtained with two of these techniques: scanning electric potential (SEPM) and electric force microscopy (EFM). These results were associated to images acquired by using...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Electrostatics of solids; Electric charge excess; Scanning electric potential microscopy; Electric force microscopy; Polymer electrostatic behavior.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000400003
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Materials from renewable resources: new properties and functions Anais da ABC (AABC)
GALEMBECK,FERNANDO; BURGO,THIAGO A.L.; SILVA,DOUGLAS S. DA; SANTOS,LEANDRA P..
Abstract: Sustainable production requires increasing use of raw materials from renewable sources, processed under mild conditions with minimal effluent production. These requirements are satisfied by using materials derived from biomass, in synergy with food and energy production. The possibilities of biomass are continuously enlarged by new findings, as in the intrinsic nanocomposite properties of natural rubber and the amphiphile behavior of cellulose that translated into new functional materials, including high-performance, flexible and conductive non-metallic materials. Other findings are allowing a better understanding of electrostatic phenomena that play a positive role in electrostatic adhesion and cohesion of nanocomposites made from biomass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cellulose; Electrostatics; Nanocomposites; Natural rubber.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700401
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