(2-Fenil-1,3 Dioksalan -4-il) metilmetakrilat-ko-etilmetakrilat polimerinin viskozitesinin sıcaklık ve konsantrasyon ile değişimi

Year 2019, , 358 - 366, 24.03.2019

Filiz Kar , Zülfiye İlter

https://doi.org/10.18185/erzifbed.469339

Abstract

Bu çalışmada
sentezleme verileri başka bir çalışmada sunulan (2-Fenil-1,3 Dioksalan-4-il)
metilmetakrilat-ko-etilmetakrilat (PDMMA-ko-EMA) polimer çözeltilerinin viskozitesine sıcaklık ve konsantrasyonun etkileri
beş farklı sıcaklıkta araştırıldı. Bunun için Ubbelohde
tipi viskozimetre (kılcal no: Ic, ID: 0.84 mm ve k: 0.03005) kullanılarak
viskozite değerleri, Gay-Lussac tipi piknometre kullanılarak yoğunluk değerleri
ölçülmüştür. Sıcaklığın etkisi Arrhenius tipi bir denklem ile konsantrasyonun
etkisi ise iki tür denklem, power ve üstel model ile tanımlanmıştır. Sıcaklık
ve konsantrasyonun etkisini birlikte ifade eden denklemler türetilmiştir.
Aktivasyon enerjisi 4.07-11.87 kJ/mol arasında değişmektedir.

Keywords

Kopolimer, viskozite

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