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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Flexible conductive blend of natural rubber latex with PEDOT:PSS

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Author(s):
Boratto, Miguel H. [1] ; Nozella, Natan L. [1] ; Ramos, Jr., Roberto A. [2] ; da Silva, Rafael Aparecido [2] ; Graeff, Carlos F. O. [2]
Total Authors: 5
Affiliation:
[1] Univ Estadual Paulista, Dept Fis, UNESP, Campus Bauru, Bauru, SP - Brazil
[2] Univ Estadual Paulista, POSMAT, UNESP, Campus Bauru, Bauru, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: APL Materials; v. 8, n. 12 DEC 1 2020.
Web of Science Citations: 0
Abstract

Natural Rubber Latex (NRL) obtained from Hevea brasiliensis is a biocompatible electrically insulating material with exceptional mechanical properties. Poly(3,4-ethylene dioxythiophene) poly(styrene sulfonate), PEDOT:PSS, on the other hand, is a biocompatible highly conductive organic material with poor flexibility. We hereby introduce a blend of NRL/PEDOT:PSS (N/P). This study involved different N/P volume ratios and temperatures of curing aiming at an optimal combination of good flexibility and conductivity. Low-temperature annealing, at 60 degrees C, dries and cures the blend in a few minutes and improves its tensile strength and conductivity. The blend can stretch more than 700% of its initial length and presents a good gauge factor and small resistance variation (R/R-0) for Delta L/L-0 of up to 100%. Among the different N/P concentrations, the membranes of an N/P ratio of 1/4 and those thermally cured have the most promising conductive flexible properties for bioelectronic applications. (AU)

FAPESP's process: 19/18481-1 - Investigation of the properties of thin films of PEDOT:PSS and polymeric heterostructures of PEDOT:PSS
Grantee:Natan Luis Nozella
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 16/01743-5 - The new gestational triad: hyperglycemia, urinary incontinence (UI) and biomolecular profile as a long-term predictor for UI: a prospective cohort study: translational research with biodevice with stem cells for muscle regeneration in diabetic rats
Grantee:Marilza Vieira Cunha Rudge
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 17/20809-0 - Study of organic devices for application in bioelectronics
Grantee:Miguel Henrique Boratto
Support Opportunities: Scholarships in Brazil - Post-Doctoral