Dielectric, Thermal and Mechanical Properties of a Sequence-regulated Ethylene/Anisylpropylene Copolymer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F23%3A43969823" target="_blank" >RIV/49777513:23220/23:43969823 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10410502" target="_blank" >https://ieeexplore.ieee.org/document/10410502</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CEIDP51414.2023.10410502" target="_blank" >10.1109/CEIDP51414.2023.10410502</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric, Thermal and Mechanical Properties of a Sequence-regulated Ethylene/Anisylpropylene Copolymer

Popis výsledku v původním jazyce

The copolymerization of ethylene and anisylpropylenes by a sterically demanding half-sandwich scandium catalyst afforded an entirely new class of copolymers with a wide range of glass-transition temperatures (Tg) and mechanical, self-healing, and shape-memory properties by controlling the comonomer sequence and polymer molecular weight and varying the anisyl substituents. This paper focuses on the dielectric, thermal and mechanical properties of one representative of this class of copolymers to investigate its potential for use in electrical insulation technology. Dielectric, thermal and mechanical properties were comprehensively evaluated for the above copolymer. Besides estimating volume and surface resistivity and dielectric strength, the temperature and frequency dependence of the relative permittivity and loss factor were studied. Tg was also determined by differential scanning calorimetry. Tensile tests assessed mechanical and self-healing properties. The tested copolymer has excellent dielectric parameters that can be compared with commonly used insulating materials. Below the observed T g , the material also shows satisfactory electrical insulation properties in the frequency domain. The results of tensile tests show that the copolymer&apos;s stress-strain curve has a typical trend for thermoplastic polymers. In the range of elastic deformations, the material offers non-autonomous self-healing properties.

Název v anglickém jazyce

Dielectric, Thermal and Mechanical Properties of a Sequence-regulated Ethylene/Anisylpropylene Copolymer

Popis výsledku anglicky

The copolymerization of ethylene and anisylpropylenes by a sterically demanding half-sandwich scandium catalyst afforded an entirely new class of copolymers with a wide range of glass-transition temperatures (Tg) and mechanical, self-healing, and shape-memory properties by controlling the comonomer sequence and polymer molecular weight and varying the anisyl substituents. This paper focuses on the dielectric, thermal and mechanical properties of one representative of this class of copolymers to investigate its potential for use in electrical insulation technology. Dielectric, thermal and mechanical properties were comprehensively evaluated for the above copolymer. Besides estimating volume and surface resistivity and dielectric strength, the temperature and frequency dependence of the relative permittivity and loss factor were studied. Tg was also determined by differential scanning calorimetry. Tensile tests assessed mechanical and self-healing properties. The tested copolymer has excellent dielectric parameters that can be compared with commonly used insulating materials. Below the observed T g , the material also shows satisfactory electrical insulation properties in the frequency domain. The results of tensile tests show that the copolymer&apos;s stress-strain curve has a typical trend for thermoplastic polymers. In the range of elastic deformations, the material offers non-autonomous self-healing properties.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Annual Report - Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2023)

ISBN

979-8-3503-3562-0

ISSN

0084-9162

e-ISSN

2576-2397

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

East Rutherford, Spojené státy

Datum konání akce

15. 10. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001169469200063