کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
593431 1453939 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the deposition of silicone copolymers on keratin fibers by streaming potential measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Characterization of the deposition of silicone copolymers on keratin fibers by streaming potential measurements
چکیده انگلیسی


• Cationic silicone copolymer deposition on keratin monitored by streaming potential.
• Amino silicone polyether block copolymer screened charges more efficiently than conventional aminosilicone.
• Long ethylene oxide block facilitated the silicone block copolymer unfolding.
• At low pH, silicone block copolymers overcompensated substrate surface charges.

This paper compares the deposition of two aminofunctional silicones on hair that are both widely used as textile finishes and hair conditioners. The two polymers had different structures: a linear amino-polyether-silicone block copolymer (ABn) with hydrophilic character and a conventional pendant aminodimethicone (AMD) with the same amine content. The deposition (irreversible adsorption) on keratin fibers as a function of pH, concentration, and treatment time was studied using streaming potential measurements. The polymer deposition was also measured independently by analysis of the silicon element content of the treated hair samples. With ABn, the deposition reached a plateau after the reversal of the hair charge (overcompensation). In contrast, with AMD, the reversal of charge was not observed and the deposition was much higher, suggesting a more prominent role of hydrophobic interactions. A recent model of streaming potential was used to interpret the data.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 434, 5 October 2013, Pages 102–109
نویسندگان
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