Styrene–maleic anhydride random copolymer (R‐SMA 7.5 ), with a low content of maleic anhydride (MAH) of about 7.5 mol%, has been prepared, and the copolymer was characterized by fourier‐transform infrared (FTIR) and 13 C NMR techniques showing that the product contained only random ...
The Stereochemistry of Styrene-Maleic Anhydride Copolymers: 13C-NMR Study and Pvcilo and Indo/1 Calculations[J] . George B. Butler,Choon H. Do,Michael C. Zerner.Journal of Macromolecular Science, Part A . 1989 (8)The stereochemistry of styrene-maleic anhydride copolymers:13C-NMRstudy and ...
STYRENE MALEIC ANHYDRIDE COPOLYMER CAS 26762-29-8 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more.
Schematic representation of the synthesis of styrene–maleic anhydride (Reaction 1) and the preparation of styrene–maleic acid (Reaction 2) as illustrated here for a 1:1 styrene-to-maleic anhydride/acid molar ratio. When styrene is present in excess, the monomer sequence distribution in the poly...
1H NMR,13C NMR,GPC,DSC and TGA,respectively.The mass fraction of the N-phenylmaleimide in terpolymers calculated from FOX equation was in agreement with the 1H NMR results.DSC results show that the glass transition temperature of terpolymers increases from 202 ℃ to 215 ℃ with various ...
Since maleic anhydride (MAA) produces discoloring oligomers, PP was grafted with a mixture of MAA and α-methylstyrene (MS). Advantageous is that MS cannot homopolymerize at high temperatures and that MAA and MS tend to copolymerize alternatingly (to colorless products). The kinetics of the ...
1H and 13C NMR spectra for a series of arylmaleamic acids, arylmaleimides, arylsuccinamic acids and arylsuccinimides The 1H and 13C NMR spectra of 17 succinic anhydride derivatives and 25 maleic anhydride derivatives were completely assigned using one- and two-dimensional... J Trujillo-Ferrara...
These allow for membrane proteins to be stabilised without the need for the lipid bilayer and subsequent biophysical characterisation by, for example X-ray crystallography, electron microscopy and NMR6. More recently, it has been demonstrated that SMA isolates membrane proteins from a membrane ...
maleic anhydride were determined by NMR and found to be > 95%. A small fraction of the polymer was purified by precipitation two times into hexanes at 0 °C. The precipitated polymer was characterized by SEC and NMR. The remainder was subjected to RAFT end-group removal. The number ...
The average diad concentrations of methyl methacrylate (MMA) unit, P2{MiMj}, of the title terpolymer prepared by radical polymerization with various conversions were studied by 1H-NMR measurements. Several methoxy proton peaks of MMA resolved by the diamagnetic shielding effects of styrene were assign...