Poly (acrylonitrile – co -1-vinylimidazole): A new melt processable carbon fiber precursor
نویسندگان
چکیده
منابع مشابه
A photocrosslinkable melt processible acrylonitrile terpolymer as carbon fiber precursor
A novel photocrosslinkable and melt processible terpolymer precursor for carbon fiber has been successfully synthesized and characterized. The terpolymer was synthesized by an efficient emulsion polymerization route and has a typical composition of acrylonitrile/methyl acrylate/acryloyl benzophenone in the mole ratio, 85/14/1. It has been characterized by FTIR, NMR, intrinsic viscosity and GPC ...
متن کاملMagnetic Poly-(Acrylonitrile-Co-Acrylamide) Microparticles for Immobilization of Trypsin
Well-shaped spherical magnetic microspheres were prepared using a synthetic polymer of poly-(acrylonitrile-co-acrylamide). Their size varied from 100 up to 1000 μm proportionally to the flow rate of the polymer solution and their density was from 1030 to 1045 kg.m, depending on the magnetite content. Trypsin (EC 3.4.21.4) was chosen as model enzyme and immobilized on the acyl azide derivatives ...
متن کاملSynthesis and Thermal Properties of Acrylonitrile/Butyl Acrylate/Fumaronitrile and Acrylonitrile/Ethyl Hexyl Acrylate/Fumaronitrile Terpolymers as a Potential Precursor for Carbon Fiber
A synthesis of acrylonitrile (AN)/butyl acrylate (BA)/fumaronitrile (FN) and AN/EHA (ethyl hexyl acrylate)/FN terpolymers was carried out by redox polymerization using sodium bisulfite (SBS) and potassium persulphate (KPS) as initiator at 40 °C. The effect of comonomers, BA and EHA and termonomer, FN on the glass transition temperature (Tg) and stabilization temperature was studied using Differ...
متن کاملMelt - Processable Polypeptide / Ionomer Molecular Composites
Introduction. Since Helminiak et al.' and Takayanagi2 first proposed the concept of a molecular composite, considerable remarch has been directed a t developing these materiale.3 Conceptually, molecular compitea are mixtures of a rigid rod polymer homogeneously dispersed in a flexible coil polymer matrix, thus providing fiber reinforcement at a molecular level. In practice, however, miscible bl...
متن کاملMelt-Processable Syndiotactic Polystyrene/Montmorillonite Nanocomposites
Monoalkyland dialkyl-imidazolium surfactants were used to prepare organically modified montmorillonites with markedly improved thermal stability in comparison with their alkyl-ammonium equivalents (the decomposition temperatures increased by ca. 100 °C). Such an increase in the thermal stability affords the opportunity to form syndiotactic polystyrene (s-PS)/imidazolium-montmorillonite nanocomp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Polymer
سال: 2011
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2010.11.054