مقالات من

 

دانلود مقاله Exfoliated Poly (StyreneدرcoدرMethyl methacrylate) Nanocomposite via AGET ATRP in Miniemulsion تحت pdf دارای 8 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

فایل ورد دانلود مقاله Exfoliated Poly (StyreneدرcoدرMethyl methacrylate) Nanocomposite via AGET ATRP in Miniemulsion تحت pdf کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه و مراکز دولتی می باشد.

این پروژه توسط مرکز مرکز پروژه های دانشجویی آماده و تنظیم شده است

توجه : در صورت  مشاهده  بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی دانلود مقاله Exfoliated Poly (StyreneدرcoدرMethyl methacrylate) Nanocomposite via AGET ATRP in Miniemulsion تحت pdf ،به هیچ وجه بهم ریختگی وجود ندارد

---

بخشی از متن دانلود مقاله Exfoliated Poly (StyreneدرcoدرMethyl methacrylate) Nanocomposite via AGET ATRP in Miniemulsion تحت pdf :

سال انتشار: 1390

محل انتشار: هفتمین کنگره ملی مهندسی شیمی

تعداد صفحات: 8

چکیده:

Exfoliated poly (styrene-co-methyl methacrylate) nanocomposites were synthesized using activators generated by electron transfer for atom transfer radical polymerization (AGET ATRP). Miniemulsion polymerization has been employed for its abundant advantages to encapsulateinorganic materials. Cetyltrimethylammonium bromide (CTAB) as a cationic surfactant which is an effective surfactant at higher temperatures was used to stabilize the miniemulsion system.Successful miniemulsion AGET ATRP was carried out by using 4,4′-dinonyl-2,2′-bipyridine (dNbPy) as a hydrophobic ligand. Formation of monodispersed droplets and particles with sizes in the range of 200 nm was examined by dynamic light scattering (DLS). Conversion and molecularweight study was also carried out using gravimetry and gel permeation chromatography (GPC) respectively. Monodisperse distribution of spherical shape particles with sizes in the range of approximately 200 nm was demonstrated by using scanning electron microscopy (SEM) images ofnanocomposite containing 1 wt% of nanoclay which is more compiled with dynamic light scattering (DLS) results. Transmission electron microscopy (TEM) results shows well-dispersed exfoliated clay layers in the polymer matrix with 1 wt% of nanoclay content which is coincidence with X-ray diffraction (XRD) data.

 

 

دانلود این فایل