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Bonardd S, Alegria Á, Saldías C, Leiva Á, Kortaberria G. Synthesis of new poly(itaconate)s containing nitrile groups as high dipolar moment entities for the development of dipolar glass polymers with increased dielectric constant. Thermal and dielectric characterization. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bonardd S, Alegria A, Saldias C, Leiva A, Kortaberria G. Polyitaconates: A New Family of "All-Polymer" Dielectrics. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38476-38492. [PMID: 30346120 DOI: 10.1021/acsami.8b14636] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This work presents the synthesis of new poly(itaconate)s containing sulfone or nitrile pendant groups through conventional radical polymerization together with their characterization and comparison with poly(methacrylate)s containing identical groups. Structural and thermal characterization has been carried out in terms of Fourier transform infrared spectroscopy, differential scanning calorimetry, nuclear magnetic resonance, and thermogravimetric analysis. Characterized by broad band dielectric spectroscopy (BDS), all polymers showed dielectric constant values between 7 and 10 (at 25 °C and 1 kHz) and relative low dielectric loss values (≈0.02). BDS measurements showed, for all the polymers analyzed, notorious subglass transitions even at temperatures below -100 °C, resulting in a broad temperature interval in which these polymers exhibit high dielectric constant and could work without high losses. Therefore, these materials seem to be good candidates for dielectric applications such as energy storage, among others.
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Affiliation(s)
- Sebastian Bonardd
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
- "Materials + Technologies" Group, Departamento Ingeniería Química y Medio Ambiente, Escuela Univ Politécnica , Universidad País Vasco/Euskal Herriko Unibertsitatea , Pza Europa 1 , 20018 . Donostia-San Sebastián , Spain
| | - Angel Alegria
- Materials Physics Center, CSIC-UPV/EHU , Paseo Manuel Lardizábal 5 , San Sebastian 20018 , Spain
- Departamento Física de Materiales , Universidad del País Vasco , Paseo Manuel Lardizábal 3 , San Sebastian 20018 , Spain
| | - Cesar Saldias
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
| | - Galder Kortaberria
- "Materials + Technologies" Group, Departamento Ingeniería Química y Medio Ambiente, Escuela Univ Politécnica , Universidad País Vasco/Euskal Herriko Unibertsitatea , Pza Europa 1 , 20018 . Donostia-San Sebastián , Spain
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Bonardd S, Robles E, Barandiaran I, Saldías C, Leiva Á, Kortaberria G. Biocomposites with increased dielectric constant based on chitosan and nitrile-modified cellulose nanocrystals. Carbohydr Polym 2018; 199:20-30. [DOI: 10.1016/j.carbpol.2018.06.088] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/01/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
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