کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5202606 | 1381905 | 2011 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and thermal studies of self-crosslinked terpolymer derived from 4-acetylpyridine oxime, formaldehyde and acetophenone
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation and thermal studies of self-crosslinked terpolymer derived from 4-acetylpyridine oxime, formaldehyde and acetophenone Preparation and thermal studies of self-crosslinked terpolymer derived from 4-acetylpyridine oxime, formaldehyde and acetophenone](/preview/png/5202606.png)
چکیده انگلیسی
Terpolymer (4-APOFA) has been synthesized using the monomer 4-acetylpyridine oxime, formaldehyde and acetophenone in 1:5:1 molar proportion. The structure of 4-APOFA terpolymer has been elucidated based on various physicochemical techniques, i.e., FT-IR, 1H NMR, Pyrolyis GC/MS and viscosity average molecular weight. The glass transition temperature (Tg) and thermal stability of terpolymer have been determined by DSC. The activation energy of the thermal reaction has been determined with differential scanning calorimetry using Kissinger method. The apparent activation energies (Ea) of each step during thermodegradation have been determined using Flynn-Wall-Ozawa method. The type of solid-state mechanism has been established by Craido method. From the calculation, the solid-state thermal mechanism is proposed to be D3 (three-dimensional diffusion) at initial decomposition state and F1 (random nucleation with one nucleus on the individual particle) at second decomposition state for 4-APOFA. It has also been shown to possess excellent antimicrobial activities as compared to other cationic resins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 96, Issue 8, August 2011, Pages 1420-1429
Journal: Polymer Degradation and Stability - Volume 96, Issue 8, August 2011, Pages 1420-1429
نویسندگان
Narendra P.S. Chauhan, Suresh C. Ameta,