کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5210231 | 1382881 | 2011 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Poly(amide imide)s containing functional nitrile groups for high performance materials
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

چکیده انگلیسی
Novel poly(amide imide)s containing functional nitrile groups were prepared by one step polycondensation reaction of two new diacid chlorides having nitrile substituents with various aromatic diamines incorporating flexible ether bridges. The polymers were readily soluble in polar organic solvents such as N-methylpyrrolidinone, N,N-dimethylformamide, dimethylsulfoxide, and were processed into thin films from such solutions. Most of these polymers showed high thermal stability with decomposition temperature being above 390 °C and glass transition temperature in the domain of 190-220 °C. The molecular relaxations in polymer films were evidenced by dynamic mechanical analyses and dielectric spectroscopy. The electrostrictive nano-actuation of polymer films was determined using an experimental setup for linear measurements, based on a Michelson type interferometer. Also the film surface with specific profiles was investigated using an optical interferometric microscope.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 71, Issue 8, August 2011, Pages 905-915
Journal: Reactive and Functional Polymers - Volume 71, Issue 8, August 2011, Pages 905-915
نویسندگان
Irina Bacosca, Elena Hamciuc, Maria Bruma, Mircea Ignat,