Design and characterization of biodegradable polymer-clay nanocomposites prepared by solution mixing technique
نویسندگان
چکیده مقاله:
This paper discusses about preparation of biodegradable polymer /clay nanocomposites based on organically modified montmorillonite clay; i.e. cloisite 10A and biodegradable polymer chitosan by solution mixing technique and their characterization. The nanocomposites were successfully prepared and their structures were characterized by powder x-ray diffraction (XRD), particle size analyzer (Beckman coulter), scanning electron microscopy (SEM), and fourier transmission infra red spectroscopy (FT-IR) techniques. The intensity distributions and average size and polydispersity index of particles were confirmed from particle size analysis. The XRD results revealed the information on the degree of hybrid structure generated and crystal size. The surface topography of polymer nanocomposites and their shapes were determined from SEM. These SEM results confirmed the exfoliation of polymer between the clay layers. From both XRD and particle size analysis results, it is revealed that the average diameters of the prepared nanocomposites were found to be within 300-500nm. So these nanoformulations are expected to be beneficial for controlled drug delivery system.
منابع مشابه
design and characterization of biodegradable polymer-clay nanocomposites prepared by solution mixing technique
this paper discusses about preparation of biodegradable polymer /clay nanocomposites based on organically modified montmorillonite clay; i.e. cloisite 10a and biodegradable polymer chitosan by solution mixing technique and their characterization. the nanocomposites were successfully prepared and their structures were characterized by powder x-ray diffraction (xrd), particle size analyzer (beckm...
متن کاملStructural Characterization of Polymer-Clay Nanocomposites Prepared by Co-Precipitation Using EPR Techniques
Polymer-clay nanocomposites (PCNCs) containing either a rubber or an acrylate polymer were prepared by drying or co-precipitating polymer latex and nanolayered clay (synthetic and natural) suspensions. The interface between the polymer and the clay nanoparticles was studied by electron paramagnetic resonance (EPR) techniques by selectively addressing spin probes either to the surfactant layer (...
متن کاملPermeation Properties of Polymer/Clay Nanocomposites
The important characteristics of polymer/clay nanocomposites are stability, barrier properties and in the case of polyvinyl chloride also plasticizer migration into other materials. Therefore, the permeation properties of polymer/clay nanocomposites are discussed in this paper. The attention was focused to the polyethylene (PE) and polyvinyl chloride (PVC). Natural type of montmorillonite MMTNa...
متن کاملCo2-mediated Formation of Polymer/clay Nanocomposites
QIAN ZHAO: CO2-mediated formation of polymer/clay nanocomposites (Under the direction of Edward T. Samulski) In this thesis, the feasibility of scCO2 as both a processing medium and a polymerization medium for preparation of polymer/clay nanocomposites has been explored, with the first part discussing a CO2-mediated intercalation of poly(ethylene oxide) (PEO) in clay. It has been shown that CO2...
متن کاملLight induced curing of Clay/Polymer nanocomposites
Clay nanocomposites have been synthesized by UV-curing with organic and waterbased resins. The effect of the chemical structure of the organophilic layer of the clay on the dispersibility in the photocurable resins, the photocuring efficiency and the final properties of the UV-cured nanocomposites are discussed.
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 4 شماره 2
صفحات 135- 139
تاریخ انتشار 2013-12-01
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023