Çeşitli Uzunluklardaki PEG’ler Vasıtasıyla PVC’nin “Klik” Kimyası ile Çapraz Bağlanması

Yıl 2022, Cilt: 12 Sayı: 1, 59 - 66, 01.06.2022

Nilgün Asan Temel Öztürk Hasibe Kudu Ergül Meyvacı Efkan Çatıker

Öz

Çapraz bağlı poli(vinil klorür) (c-PVC), azit grup ekli poli(vinil klorür) (PVC-N3) ile dipropargillenmiş polietilen glikolün (dp-PEG)
“klik” kimyası reaksiyonuyla sentezlendi. Bu amaç için, dp-PEG’ler, farklı molekül ağırlıklarına sahip polietilen glikollerin (400 Da,
600 Da, 1000 Da, 1500 Da, 2000 Da, 3000 Da, and 10000 Da) propargil klorür ile muamelesinden elde edildiler. PVC-N3, PVC
zincirleri üzerindeki asılı klorürlerle azid iyonu arasındaki yer değiştirme reaksiyonuyla sentezlendi. PVC-N3 ve çeşitli uzunluklardaki
dp-PEG’ler kullanılarak farklı derecelerde çapraz bağlamaya sahip c-PVC’ler elde edildi. PVC-N3, dp-PEG ve c-PVC’nin
karakterizasyonları, Fourier dönüşümlü kızılötesi spektroskopisi, nükleer manyetik rezonans spektroskopisi, termogravimetrik analiz,
taramalı elektron mikroskobu ve elementel analiz teknikleri kullanılarak gerçekleştirildi. N,N-dimetilformamid içinde farklı çapraz
bağlanma yoğunluklarına sahip c-PVC’lerin şişme dereceleri nicel ölçümlerle belirlendi.

Anahtar Kelimeler

"Klik" kimyası, çapraz bağlanma, poli(vinil klorür), polietilen glikol, şişme derecesi

Cross-linking of PVC by Various Lengths of PEG via “Click” Chemistry

Öz

Cross-linked poly(polyvinyl chloride) (c-PVC) was synthesized by “click” reaction of polyvinyl chloride with azido pendant group
(PVC-N3) and dipropargyllated polyethylene glycol (dp-PEG). For this purpose, dp-PEGs were obtained from polyethylene glycols
with different molecular weights (400 Da, 600 Da, 1000 Da, 1500 Da, 2000 Da, 3000 Da, and 10000 Da) via treatment with
propargyl chloride. PVC-N3 was synthesized through the substitution reaction between the pendant chloride on the PVC chains
and azide ion. By using PVC-N3 and dp-PEGs with various lengths, c-PVCs with various degrees of cross-linking was obtained.
The characterization of the PVC-N3, dp-PEG and c-PVC were performed using Fourier transform infrared spectroscopy, nuclear
magnetic resonance spectroscopy, thermogravimetric analysis, scanning electron microscopy and elemental analysis. Degrees of
swelling of c-PVCs with different cross-linking densities in N,N-dimethylformamide were determined by quantitative measurements

Anahtar Kelimeler

"Click" chemistry, cross-linking, poly(vinyl chloride), polyethylene glycol, degree of swelling

Kaynakça

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