Fabrication of Uniform Anionic Polymeric Nanoplatelets as Building Blocks for Constructing Conductive Hydrogels with Enhancing Conductive and Mechanical Properties.
Macromol Rapid Commun
; 45(13): e2400008, 2024 Jul.
Article
em En
| MEDLINE
| ID: mdl-38659335
ABSTRACT
Conductive hydrogels play a crucial role in advancing technologies like implantable bioelectronics and wearable electronic devices, owing to their favorable conductivity and appropriate mechanical properties. Here, a novel bottom-up approach is reported for crafting conductive nanocomposite hydrogels to achieve enhancing conductive and mechanical properties. In this approach, new poly(É-caprolactone)-based block copolymers with sulfonic groups are first synthesized and self-assembled into uniform polyanionic nanoplatelets. Subsequently, these negatively charged nanoplatelets, with sulfonic groups on the surface, are employed as nanoadditives for the polymerization of 3,4-ethylenedioxythiophene (EDOT), resulting in poly(3,4-ethylenedioxythiophene)poly(styrene sulfonate) (PEDOTPSS)/nanoplatelet complex with 3.8 times enhanced electrical conductivity compared with their counterparts prepared using block copolymers (BCPs). Blending the (PEDOTPSS)/nanoplatelet complex with calcium alginate, nanocomposite hydrogels are successfully prepared. In comparison with hydrogels with (PEDOTPSS)/BCP complexes prepared by a top-down method, the nanocomposite hydrogels are found to show twice as strong mechanical strength and 1.6 times higher conductivity. This work provides valuable insights into the bottom-up construction of conductive hydrogels for bioelectronics using well-controlled polymeric nanoplatelets.
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Base de dados:
MEDLINE
Assunto principal:
Polímeros
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Hidrogéis
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Condutividade Elétrica
Idioma:
En
Revista:
Macromol Rapid Commun
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China