کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
183627 459555 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterisation of ion transport in sulfonate based ionomer systems containing lithium and quaternary ammonium cations
ترجمه فارسی عنوان
خصوصیات انتقال یون در سیستم های آینومر مبتنی بر سولفونات حاوی کاتیون های لیتیوم و کواترنری آمونیوم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Two sulfonated ionomers based on poly(triethylmethyl ammonium 2-acrylamido-2-methyl-1-propane sulfonic acid) (PAMPS) and containing mixtures of Li+ and quaternary ammonium cations are characterised. The first system contains Li+ and the methyltriethyl ammonium cation (N1222) in a 1:9 molar ratio, and the 7Li NMR line widths showed that the Li+ ions are mobile in this system below the glass transition temperature (105 °C) and are therefore decoupled from the polymer segmental motion. The conductivity in this system was measured as 10−5 S cm−1 at 130 °C. A second PAMPS system containing Li+ and the dimethylbutylmethoxyethyl ammonium cation (N114(2O1)) in a 2:8 molar ratio showed much lower conductivities despite a significantly lower Tg (60 °C), possibly due to associations between the Li+ and the ether group on the ammonium cation, or between the latter cations and the sulfonate groups.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 175, 1 September 2015, Pages 80–86
نویسندگان
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