کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
744768 894402 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anchoring of self-curable ionene-containing polyesters to electrode surface by UV irradiation and their humidity-sensitive properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Anchoring of self-curable ionene-containing polyesters to electrode surface by UV irradiation and their humidity-sensitive properties
چکیده انگلیسی

I am reporting a simple effective way to photochemically attach polyelectrolyte layer to solid electrode surface. The system is based on photoreactive chalcone-containing polyesters that are bound to alumina surfaces via chalcone-containing alkoxysilane anchoring agent. The alumina substrate is then converted to a chalcone film that is reacted with the polyelectrolyte by irradiating UV light. As a result of photochemical reaction, humidity-sensitive polyelectrolyte is covalently bound to the electrode surfaces. As examples, we have successfully attached thin layer of polyesters obtained by reacting ionene-containing diphenol (IDP) and 4,4′-dihydroxy chalcone (DHC) with terephthaloyl chloride to the electrode surface via the photocrosslinking reaction. The pretreatment of the substrates with chalcone-containing silane-coupling reagents was performed for improving the water durability and stability of the humidity sensors at high temperature and high humidity. Their water durability, high temperature/humidity stabilities and long-term stability were highly improved and evaluated as a humidity-sensing membrane.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 148, Issue 2, 15 July 2010, Pages 559–568
نویسندگان
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