کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10602600 | 982388 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rheological and micro-DSC studies on the aqueous mixtures of methylcellulose and ammonium poly(3-thiophene acetic acid)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Rheological and micro-DSC studies on the aqueous mixtures of methylcellulose and ammonium poly(3-thiophene acetic acid) Rheological and micro-DSC studies on the aqueous mixtures of methylcellulose and ammonium poly(3-thiophene acetic acid)](/preview/png/10602600.png)
چکیده انگلیسی
In the present work aqueous mixtures of polysaccharide of methylcellulose (MC) and conductive polymer of ammonium poly(3-thiophene acetic acid) (PTAA-NH4) were prepared and the effect of PTAA-NH4 on the rheological and thermal properties of MC solution were investigated. Significant viscous synergism depending on shear rate and concentration of PTAA-NH4 was found for the mixtures, indicating a special interaction between the two amphiphilic polymers of MC and PTAA-NH4. In comparison with pure MC solutions, the mixtures showed much more evident shear thinning characteristics. When the concentration of PTAA-NH4 added was higher than 0.15%, weak gel-like behavior of the mixtures was also observed at low temperatures. In addition, though the gelation and degelation patterns of MC were not changed by the addition of PTAA-NH4, both rheological and calorimetric measurements showed that the presence of PTAA-NH4 shifted the sol-gel transition temperature of MC solution to higher temperature with increasing of the concentration of PTAA-NH4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 85, Issue 4, 1 July 2011, Pages 862-868
Journal: Carbohydrate Polymers - Volume 85, Issue 4, 1 July 2011, Pages 862-868
نویسندگان
Renliang Lv, Tu Luan, Fengyuan Yu, Hongbin Zhang,