The structure of maleic anhydride in the vapor phase at 90 ° C has been determined by gas-phase electron diffraction. A planar model was found to adequately represent the experimental intensity curve. The pertinent structural parameters obtained from a least-squares refinement of a geometrically ...
Structure of poly(maleic anhydride) 来自 Semantic Scholar 喜欢 0 阅读量: 48 作者: R Bacskai 摘要: The bulk polymerization of maleic anhydride initiated with acylperoxides, di- tert -butyl peroxide, AIBN, or pyridine proceeds with evolution of CO 2 . The amount of CO 2 generated depends on...
Thiophene (TH) is known to form an alternating copolymer with maleic anhydride (MAH). In the present study the alternating copolymers of MAH with each of TH, 2-methylthiophene (2MTH), and 3-methylthiophene (3MTH) were prepared and their structures were determined by IR, and for the first ...
Effect of molecular structure of maleic anhydride, fumaric acid – Isopentenyl polyoxyethylene ether based polycarboxylate superplasticizer on its properti... Effect of molecular structure of maleic anhydride, fumaric acid – Isopentenyl polyoxyethylene ether based polycarboxylate superplasticizer on its ...
Chinese Academy ofSciences, Changchun 130022, People's Republic of China (Received April 10, 2000; Accepted August 18, 2000) ABSTRACT: Naphthalene-labeled polypropylene (PP) was prepared by melt reaction of maleic anhydride-grafted- polypropylene (PP-g-MA) with 1-aminonaphthalene in a Barabender...
R = p-tolyl) and OsCl(NO)(PPh 3) 3, all form simple 1 : 1 π-adducts with tetrafluoroethylene and maleic anhydride, with the overall coordination geometry being dependent upon the relative electron-withdrawing properties of the olefin and the relative electron richness of the metal fragment....
Hydrogels have also been made with poly(N-vinyl-2-pyrrolidone), poly(methacrylic acid), and poly(methyl methacrylate-co-maleic anhydride), which are used in similar biomedical applications. For example, polyacrylamides are synthetic long-chain polymers designed to attract positively or negatively char...
A hierarchical structure and properties of intercalated polypropylene/clay nanocomposites We have prepared the intercalated nanocomposites of polypropylene (PP)/clay (PPCNs) successfully using maleic anhydride modified PP (PP-MA) and organophili... PH Nam,P Maiti,M Okamoto,... - 《Polymer》 被引量...
Crystal structure of (1SR,8RS,15SR,19RS)4,6-dimethoxy-17-methyl-3,5- diazapentacyclo[6.6.5.02,7.09,14.015,19]-nonadec-2,4,6,9,11,13-hexaene-16,18- dione, C19H17N3O4, the major adduct from the Diels-Alder reaction of maleic anhydride with 2,4-dimethoxy-1,3-diazaanthracene ...
Radical copolymerizations of N -vinyl-2-pyrrolidone (VP) with isostructural analogs of maleic anhydride (MA), such as citraconic anhydride (CA) and N -subs... G Güven,ZMO Rzaev - 《Polymer Bulletin》 被引量: 6发表: 2008年 1D coordination polymers formed by tetranuclear lead(II) building...