Kumarin Türevli Kopolimerlerin Sentezi ve Karakterizasyonu

Yıl 2018, Cilt: 22 Sayı: 3, 880 - 887, 01.06.2018

Adnan Kurt Ahmet Faruk Ayhan Murat Koca

https://doi.org/10.16984/saufenbilder.322354

Cited By: 3

Öz

Mevcut çalışmada, kumarin türevli yeni bir monomer olan
3-benzoil kumarin-7-il-metakrilat (BKMA) monomerinin metil metakrilat (MMA) ile
farklı bileşimlerde bir seri kopolimeri hazırlandı. Bu amaçla serbest radikal
polimerizasyon yöntemi kullanıldı. Spektral karakterizasyonlar FTIR ve ¹H-NMR
teknikleri ile başarıldı. Kopolimer sistemlerinin bileşimleri ¹H-NMR
spektrumlarından belirlendi. DSC analizinden kopolimer bileşimindeki BKMA oranı
%23 seviyesine düştüğünde camsı geçiş sıcaklığında 179 ^oC’den 165 ^oC’ye
bir azalış görüldü. Poli(BKMA) homopolimeri ve %54 BKMA bileşimli kopolimerin
TGA analizinde her iki polimer için başlangıç bozunma sıcaklıkları sırasıyla
321 ^oC ve 311 ^oC olarak kaydedildi.

Anahtar Kelimeler

kumarin türevli kopolimer, sentez, karakterizasyon, termal özellikler

Synthesis and Characterization of Coumarin Derived Copolymers

Öz

In present study, a copolymer series of a new
coumarin derived monomer 3-benzoyl coumarin-7-yl-methacrylate (BKMA) monomer
with methyl methacrylate (MMA) at different compositions was prepared. For this
purpose, free radical polymerization method was used. Spectral
characterizations were performed by FTIR and ¹H-NMR techniques.
Copolymer compositions were determined with ¹H-NMR spectra. From DSC
analysis, the glass transition temperature of copolymers was decreased from 179
^oC to 165 ^oC when the level of BKMA ratio decreased to
23% level. In TGA analysis of poly(BKMA) homopolymer and the copolymer with 54%
BKMA ratio, the initial decomposition temperatures of both polymers were
recorded to be 321 ^oC and 311 ^oC, respectively. 

Anahtar Kelimeler

coumarin derived copolymer, synthesis, characterization, thermal properties

Kaynakça

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