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ETİL METAKRİLAT'IN STİREN İLE BLOK KOPOLİMERLERİNİN DİELEKTRİK ÖZELLİKLERİ

Year 2009, Volume: 4 Issue: 2, 203 - 210, 01.03.2009

Abstract

Bütün polimerlerin dielektrik özellikleri oda sıcaklığında 1kHz–2MHz frekans aralığında ölçüldü ve birbirleri ile karşılaştırılmalı olarak verildi. Poly(EMA) homopolimerinin, poly(EMA-b-St) ve poly(EMA-b-St-b-EMA) blok kopolimerlerinin dielektrik sabit değerleri 1 kHz'de 4.58, 4.07, 3.68; 2 MHz'de 4.25, 3.89 ve 3.44 olarak belirlendi. Dielektrik sabitlerindeki düşme oranı ise sırasıyla %7.02, %6.5, %4.4 olarak hesaplandı. Reaktansın büyüklüğü artan frekans ile azalırken rezistansın büyüklüğü ise artan frekansla artmaktadır. Belirli bir frekans değerinden sonra (yaklaşık 400 kHz), bu iki değerin herikisi de sabit bir değere ulaşmaktadır. Özellikle, düşük frekans değerlerinde (1-50 kHz) AC iletkenlik türünün artma eğiliminin bütün polimerler için benzer bir yaklaşım sergilediği belirlendi.

DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE

Year 2009, Volume: 4 Issue: 2, 203 - 210, 01.03.2009

Abstract

The dielectric properties of all polymers were calculated over the frequency range 1 kHz–2 MHz at room temperature and submitted as in compared with each other. The dielectric constant of homo, diblock and triblock copolymers, [poly(EMA), poly(EMA-b-St), poly(EMA-b-St-b-EMA), respectively], were determined as 4.58; 4.07; 3.68 at 1 kHz and as 4.25; 3.89; 3.44 at 2 MHz, and the decrease ratio in dielectric constants were found as 7.02%, 6.5%, 4.4%, respectively. The magnitude of resistance decreased with increasing frequency while the magnitude of reactance increased. After a certain frequency (about 400 kHz), both of these parameters tended to a constant trend. Especially, at low frequencies (1-50 kHz) the AC conductivity rapidly increased. The increasing tendency of AC conductivity for all polymers was determined as similar to each other.

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Details

Primary Language Turkish
Journal Section Physics
Authors

Adnan Kurt This is me

Publication Date March 1, 2009
Published in Issue Year 2009 Volume: 4 Issue: 2

Cite

APA Kurt, A. (2009). DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE. Physical Sciences, 4(2), 203-210. https://doi.org/10.12739/10.12739
AMA Kurt A. DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE. Physical Sciences. March 2009;4(2):203-210. doi:10.12739/10.12739
Chicago Kurt, Adnan. “DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE”. Physical Sciences 4, no. 2 (March 2009): 203-10. https://doi.org/10.12739/10.12739.
EndNote Kurt A (March 1, 2009) DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE. Physical Sciences 4 2 203–210.
IEEE A. Kurt, “DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE”, Physical Sciences, vol. 4, no. 2, pp. 203–210, 2009, doi: 10.12739/10.12739.
ISNAD Kurt, Adnan. “DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE”. Physical Sciences 4/2 (March 2009), 203-210. https://doi.org/10.12739/10.12739.
JAMA Kurt A. DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE. Physical Sciences. 2009;4:203–210.
MLA Kurt, Adnan. “DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE”. Physical Sciences, vol. 4, no. 2, 2009, pp. 203-10, doi:10.12739/10.12739.
Vancouver Kurt A. DIELECTRIC PROPERTIES OF BLOCK COPOLYMERS OF ETHYL METHACRYLATE WITH STYRENE. Physical Sciences. 2009;4(2):203-10.