کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
194917 459802 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterisation of mesoporous polymer films deposited using lyotropic liquid crystal templating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Characterisation of mesoporous polymer films deposited using lyotropic liquid crystal templating
چکیده انگلیسی

Porous polymer films show interesting properties as ion selective membranes. In this work, poly(1,2-diaminobenzene) and polytyramine were deposited from hexagonal liquid crystal templates using two different surfactants. Resulting films were investigated to find evidence of mesoporous structures. While templated poly(1,2-diaminobenzene) has already been described as charge selective in the past, electrochemical experiments in this work demonstrate that another mechanism (most likely, size selectivity) also contributes to its ion selective behaviour. Films were characterised using spectroscopic ellipsometry and impedance spectroscopy. Results provide further evidence for the porosity, thinness, and the presence of ions in the templated poly(1,2-diaminobenzene) films. It is demonstrated that the use of a low-cost surfactant (Brij 56) is sufficient for the templating process. In contrast, polytyramine gave no evidence of being templated by the liquid crystal.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 52, Issue 7, 1 February 2007, Pages 2640–2648
نویسندگان
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