کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5188327 | 1381151 | 2008 | 8 صفحه PDF | دانلود رایگان |
The doping of Mylar® film (composed of semi-crystalline poly(ethylene terephthalate)) with small-molecule electron traps results in a high-quality dielectric film with excellent radiation tolerance. This paper, the first of two, investigates the doping process as small molecules are implanted into the film from a solution of ethylene glycol over time. A series of fluorenone-based dopants are investigated, functionalized by nitro or cyano groups. The concentration of dopant in the Mylar® is a strong function of time, temperature, and solution concentration. Doping is ineffective below the glass transition temperature of the polymer. The chemical functionality of the dopant had a strong effect on the doping process, with additional nitro or cyano groups leading to enhanced film concentrations.
Journal: Polymer - Volume 49, Issue 25, 24 November 2008, Pages 5541-5548