Demet COŞKUN, Tuba BAYDEMİR, Mehmet Fatih COŞKUN

ATRP Metodu ile Fosfazen İçeren Polimer Sentezi ve Dielektrik Özelliklerinin İncelenmesi

Bu çalışmada önce, 2,2-bis[(4-(klorasetiloksi)imino)-2-metoksifenoksi)-4,4,6,6,-bis[spiro(2’,2’’-dioksi1’,1’’-bifenilil)siklotrifosfazen sentezlendi. Sentezlenen fosfazen türevi, metil metakrilat ve n-bütilmetakrilat monomerlerinin ATRP metoduyla polimerleşme reaksiyonlarında başlatıcı olarak kullanıldı.Sentezlenen maddelerin yapı karakterizasyonunda FT-IR, 1H ve 31P-NMR teknikleri kullanıldı. Termaldavranışları DSC ve TGA ile ölçüldü. Ortalama molekül ağırlıkları ve heterojenlik indisleri GPC aletiyleölçüldü. Sentezi yapılan polimerlerin dielektrik ölçümleri, impedans analizör cihazıyla, dielektrik sabiti,dağıtma faktörü gibi dielektrik davranışları sabit sıcaklıkta 50 Hz ile 2000 Hz frekans aralığındaölçülmüştür.

Synthesis of Phosphazene Containing Polymer Via ATRP Method and İnvestigation of Dielectric Properties

In this work, 2,2-bis [(4- (chloracetyloxy) imino) -2-methoxyphenoxy) -4,4,6,6- bis [spiro (2 ', 2' '- dioxy-1', 1''- biphenylyl) cyclotriphosphazene was synthesized and it was used as an initiator in the polymerization reactions of methyl methacrylate and n-butyl methacrylate monomers via ATRP method. The structure and the thermal behavior of synthesized materials were analyzed by FT-IR, 1H, 31P-NMR, DSC and TGA techniques. The average molecular weights and heterogeneity indices were measured by GPC instrument. Dielectric measurements of the synthesized polymers such as dielectric constant, dispersion factor, at constant temperature in the frequency range of 50 Hz to 2000 Hz were measured by the impedance analyzer device.

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