Qualitative analysis of unsaturated polyester components by 13C-NMR.
نویسندگان
چکیده
منابع مشابه
Analysis and aging of unsaturated polyester resins in contemporary art installations by NMR spectroscopy.
Two original art installations constructed from unsaturated polyester resins (UPR) and four different reference UPR products (before and after UVB aging) were analyzed by high-resolution 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. Breaking strain studies were also conducted for the four UPR model products before and after different aging procedures (moisture, UVB exposure, melt/fre...
متن کامل13C NMR study of thiostrepton and thiopeptin components.
A detailed 13C NMR study of thiostrepton and two series of thiopeptin components is consistent with their proposed structures and allows many unequivocal assignments to be made.
متن کاملMechanical Properties of Unsaturated Polyester Resin
Mechanical behaviour of unsaturated polyester resin used for the composite materials has been studied to determine various important parameters, such as tensile and compressive, single edge-notch tensile fracture toughness, flexural properties and fracture energy. Fracture toughness, KIC, and fracture energy, GIC, obtained for the polyester resin lie between the typical values for epoxy resins ...
متن کاملSupramolecular interactions probed by 13C-13C solid-state NMR spectroscopy.
We present a robust solid-state NMR approach for the accurate determination of molecular interfaces in insoluble and noncrystalline protein-protein complexes. The method relies on the measurement of intermolecular (13)C-(13)C distances in mixtures of [1-(13)C]glucose- and [2-(13)C]glucose-labeled proteins. We have applied this method to Parkinson's disease-associated α-synuclein fibrils and fou...
متن کاملUnsaturated Polyester Resin for Specialty Applications
Polymers are substances whose molecules consist of a large number of units of a few types: the units themselves, consisting of a number of atoms, are usually referred to as the segments of the polymer. In the polymerization of a mixture of two monomers, the structure of each macromolecule contains units of both monomers. Such a polymer is called copolymer and the process of its synthesis is cal...
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: BUNSEKI KAGAKU
سال: 1994
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.43.511