کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9676153 | 1454116 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphology of adsorption anionic polyelectrolytes to mica substrate in different environment visualized by atomic force microscopy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
We have observed the morphology of an anionic polyelectrolyte (partially hydrolyzed polyacrylamide) (HPAM) adsorbed to mica surface in different environment using atomic force microscopy with molecular resolution. HPAM molecules deposited on the mica surface from aqueous solution at natural pH were observed to form a nanostructured network. However, the nanostructured network-to-globule conformational transition on mica can be directly visualized when the mica substrate with the predeposited HAPM molecules was immersed into chloroform. Meanwhile, necklace-like globule conformation on mica can be obtained in the presence of NaCl.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 252, Issues 2â3, 20 January 2005, Pages 153-156
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 252, Issues 2â3, 20 January 2005, Pages 153-156
نویسندگان
Feng Zhao, Yu-Kou Du, Ji'an Tang, Xing-Chang Li, Ping Yang,