کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7144838 | 1462065 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Remarkable humidity-responsive sensor based on poly (N,N-diethylaminoethyl methacrylate)-b-polystyrene block copolymers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report on the synthesis and characterization of Poly (N,N-diethylaminoethyl methacrylate)-block-Polystyrene (PDEAEMA-b-PS) di-block copolymer. The synthesis was finished by using reversible addition-fragmentation chain transfer (RAFT) polymerization method. The investigation results of humidity sensing property of pure PDEAEMA, pure PS and PDEAEMA-b-PS di-block copolymer demonstrated that the block copolymer shown the best sensing performance. Its impedance changed more than three orders of magnitude in the range from 22% to 95% relative humidity. The hysteresis was less than 8% RH, the response and recovery time was 60 and 206Â s, respectively. The humidity sensing mechanism was discussed based on complex impedance plots. This work broadens the responsive scope of PDEAEMA-based materials from double-responsive (pH and temperature) to multi-responsive (pH, temperature and humidity).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 226, April 2016, Pages 471-477
Journal: Sensors and Actuators B: Chemical - Volume 226, April 2016, Pages 471-477
نویسندگان
Wangchang Geng, Xiaowei He, Yuanwei Su, Jing Dang, Junwei Gu, Wei Tian, Qiuyu Zhang,