bluuebunny/crossref_metadata_2025_split huggingface dataset:
Toughening and compatibilization of polypropylene/polyamide‐6 blends with a maleated–grafted ethylene‐co‐vinyl acetate
Authors: Liu Hongzhi , Xie Tingxiu , Hou Lianlong , Ou Yuchun , Yang Guisheng 
Published: January 2006

AbstractIn this article, maleated–grafted ethylene‐co‐vinyl acetate (EVA‐g‐MA) was used as the interfacial modifier for polypropylene/polyamide‐6 (PP/PA6) blends, and effects of its concentration on the mechanical properties and the morphology of blends were investigated. It was found that the addition of EVA‐g‐MA improved the compatibility between PP and PA6 and resulted in a finer dispersion of dispersed PA6 phase. In comparison with uncompatibilized PP/PA6 blend, a significant reduction in the size of dispersed PA6 domain was observed. Toluene‐etched micrographs confirmed the formation of interfacial copolymers. Mechanical measurement revealed that the addition of EVA‐g‐MA markedly improved the impact toughness of PP/PA6 blend. Fractograph micrographs revealed that matrix shear yielding began to occur when EVA‐g‐MA concentration was increased upto 18 wt %. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99:3300–3307, 2006
Radiation‐induced grafting of acrylic acid and sodium styrene sulfonate onto high‐density polyethylene membranes. II. Thermal and chemical properties
Authors: Zu Jianhua , Yu Chunhui , Wu Minghong , Jiao Zheng , Zhang Jianqiu , Liu Xinwen 
Published: January 2006

AbstractStrong acid cation‐exchange membranes were obtained by radiation‐induced grafting of acrylic acid and sodium styrene sulfonate onto high‐density polyethylene (HDPE). Thermal and chemical properties of the cation‐exchange membranes were investigated. The effectiveness of SO3Na containing membranes was conformed in inducing high resistance to oxidative degradation. The char residue of the grafted HDPE is greater than that of ungrafted HDPE. It shows that the branch chains, including SO3Na and COOH groups, give catalytic impetus to the charring. The crystallinity of the grafted membranes was decreased when increasing the grafting yield. It was assumed that the decreased crystallinity was due to collective effects of the inherent crystallinity dilution by the amorphous grafted chains and the crystal distortion of the HDPE component. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99:3396–3400, 2006
Effect of support material on ultrafiltration membrane performance
Authors: Lohokare H. R. , Bhole Y. S. , Kharul U. K. 
Published: January 2006

AbstractSupported ultrafiltration (UF) membranes based on polyacrylonitrile were prepared by phase inversion method using nonwoven polyester fabric as support with different origin. The membrane preparation parameters, including dope solution composition and casting conditions, were kept same while changing the support fabric. Various analyses performed, viz. water flux, protein rejection, porosity, and membrane compaction indicated that the support used for UF membrane preparation affects the membrane properties to a great extent, and a right support need to be chosen for a preparation of membrane with desired properties. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99:3389–3395, 2006
Differential scanning calorimetry of copolymer of isotactic polypropylene backbone with grafted poly(ethylene‐co‐propylene) branches
Authors: Whitney Philip M. , Zhu Shiping 
Published: January 2006

AbstractA series of graft polymers having polypropylene (PP) backbone and poly(ethylene‐co‐propylene) (EPR) side chains was prepared. PP backbone molecular weight (Mn) was 28–98 kg/mol, EPR side chain Mn was 2.6–17 kg/mol, and EPR content was 0–16 wt %. In this work, thermal analysis of the copolymers was performed using differential scanning calorimetry (DSC). Nonisothermal crystallization was performed at different cooling rates. The DSC thermograms revealed multiple melting peaks for slowly cooled samples, most likely the result of the melting of thinner tangential lamellae followed by the melting of thicker radial lamellae. Equilibrium melting temperature (Tm0) was determined using the linear Hoffman–Weeks method. Another approach was also used for determining Tm0: melting temperature (Tm) and crystallization temperature (Tc) were plotted as functions of logarithmic cooling rate. Linear relationships were observed for all samples with the cross points as Tm0's. As cooling rate decreased, Tc, Tm, and enthalpy of fusion (ΔHf) increased. Tm and Tm0 increased with increasing PP Mn. Tc and Tm were unaffected by the grafting of EPR onto the PP backbone. Tm0 and ΔHf decreased as EPR content increased. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99: 3380–3388, 2006
Study of dielectric properties of polypyrrole prepared using two different oxidizing agents
Authors: Saafan S. A. , El‐Nimr M. K. , El‐Ghazzawy E. H. 
Published: January 2006

AbstractPolypyrrole samples that have been prepared in a conducting state by a chemical method using two different oxidizing agents, ferric chloride and potassium persulphate, in different concentrations have been transformed to a dielectric state by heating at 333 K for 7 days and then at 353 K for 4 days more. Then the frequency and temperature 32 dependence of the dielectric constant ε′, loss tangent tan δ and AC conductivity σ′ were investigated using a complex impedance technique. It has been found that the concentrations of the reactants used in the preparation have a noticeable effect on the dielectric properties. It has been concluded also that heating at constant temperature has enhanced the resistivity of the samples, which can be considered as a simple method of obtaining polypyrrole (PPy) in a dielectric state rather than more complex electrochemical methods which may be useful in some future applications such as the manufacture of supercapacitors. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99:3370–3379, 2006
Modification of wrinkle resistance of cotton fabric
Authors: Yuen C. W. M. , Kan C. W. , Wong W. K. , Lee H. L. 
Published: January 2006

AbstractCotton fabrics were treated with montmorillonite (MMT) so as to improve the wrinkle‐resistant properties of the cotton fabrics. The MMT in emulsion form was applied by padding method to the cotton fabrics, and the wrinkle‐resistant properties of the MMT‐treated cotton fabrics and the wrinkle‐resistant properties of MMT‐treated cotton fabrics were consequently improved. Furthermore, different instrumental methods were used for studying the distribution of MMT particles on the cotton fabric surface. It was noted that near nano‐scale MMT particles were adhered on the fiber surface, and in addition, the particles size played an important role in influencing the wrinkle‐resistant properties of the cotton fabric. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99: 3700–3707, 2006
Chemiluminescence enzyme immunoassay (CLEIA) for the determination of chloramphenicol residues in aquatic tissues
Authors: Chuanlai Xu , Cifang Peng , Kai Hao , Zhengyu Jin , Wukang Wang 
Published: January 2006

AbstractA competitive indirect chemiluminescence enzyme immunoassay (ic‐CLEIA) for chloramphenicol (CAP) residues in shrimp has been developed. After optimization (incubation time, concentration of Tween‐20, concentration of PBS and pH), the method gave a limit of detection of 0.01 ng/mL and a detection range of 0.03–23.7 ng/mL, with an ED50 of 0.47 ng/mL. The method has been validated on spiked shrimp samples in terms of precision (intra‐ and interassay coefficient variations of less than 10% and 15%, respectively) and accuracy (mean recovery 95–123%). The assay performance is better than the ELISA method which is widely used to detect chloramphenicol and indicates that the CLEIA method can be used to test aquatic samples instead of ELISA. Copyright © 2006 John Wiley & Sons, Ltd.
Assessment of adenyl residue reactivity within model nucleic acids by surface enhanced Raman spectroscopy
Authors: Grajcar Lydie , El Amri Chahrazade , Ghomi Mahmoud , Fermandjian Serge , Huteau Valerie , Mandel Richard , Lecomte Sophie , Baron Marie‐Hélène 
Published: January 2006

AbstractWe rank the reactivity of the adenyl residues (A) of model DNA and RNA molecules with electropositive subnano size [Ag] sites as a function of nucleic acid primary sequences and secondary structures and in the presence of biological amounts of Cl− and Na+ or Mg2+ ions. In these conditions A is markedly more reactive than any other nucleic acid bases. A reactivity is higher in ribo (r) than in deoxyribo (d) species [pA > pdA and (pA)n ≫ (pdA)n]. Base pairing decreases A reactivity in corresponding duplexes but much less in r than in d. In linear single and paired dCAG or dGAC loci, base stacking inhibits A reactivity even if A is bulged or mispaired (A.A). dA tracts are highly reactive only when dilution prevents self‐association and duplex structures. In d hairpins the solvent‐exposed A residues are reactive in CAG and GAC triloops and even more in ATC loops. Among the eight rG1N2R3A4 loops, those bearing a single A (A4) are the least reactive. The solvent‐exposed A2 is reactive, but synergistic structural transitions make the initially stacked A residues of any rGNAA loop much more reactive. Mg2+ cross‐bridging single strands via phosphates may screen A reactivity. In contrast d duplexes cross‐bridging enables “A flipping” much more in rA.U pairs than in dA.T. Mg2+ promotes A reactivity in unpaired strands. For hairpins Mg2+ binding stabilizes the stems, but according to A position in the loops, A reactivity may be abolished, reduced, or enhanced. It is emphasized that not only accessibility but also local flexibility, concerted docking, and cation and anion binding control A reactivity. © 2006 Wiley Periodicals, Inc. Biopolymers 82: 6–28, 2006This article was originally published online as an accepted preprint. The “Published Online” date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com
Bridging μ‐η5:η4‐Coordination of an Indenyl Ligand and Reductive Coupling of Diazabutadienes in the Assembly of Di‐ and Tetranuclear Mixed‐Valent Ytterbium Indenyldiazabutadiene Complexes
Authors: Trifonov Alexander A. , Fedorova Elena A. , Fukin Georgy K. , Baranov Evgenii V. , Druzhkov Nikolai O. , Bochkarev Mikhail N. 
Published: January 2006

AbstractThe redox reaction of [Yb(C9H7)2(thf)2] with the diazabutadiene PhNC(Me)C(Me)NPh (DAD) has been found to depend on the molar ratio of the reactants. Reaction in a 1:2 molar ratio affords the dinuclear mixed‐valent complex [Yb2(μ‐η5:η4‐C9H7)(η5‐C9H7)2{μ‐η4:η4‐PhNC(Me)C(Me)NPh}] containing an indenyl ligand with an unusual μ‐η5:η4 bridging coordination. Reaction of equimolar amounts of these compounds results in an organolanthanide‐mediated reductive coupling of the DAD ligands and formation of the tetranuclear mixed‐valent complex [Yb2(μ‐η5:η4‐C9H7)(η5‐C9H7)2{μ‐η4:η4‐PhNC(CH2)C(Me)NPh}]2 with a novel tetradentate tetraimine ligand.
An Experimental and Theoretical Study of the Mechanism of Stannylcupration of α,β‐Acetylenic Ketones and Esters
Authors: Ahlquist Mårten , Nielsen Thomas E. , Le Quement Sebastian , Tanner David , Norrby Per‐Ola 
Published: January 2006

AbstractThe title reaction has been investigated by experimental and computational (DFT) techniques, and subsequently compared to the corresponding carbocupration reaction, with particular emphasis on the stereoselectivity. For stannylcupration of an ynone substrate, only the anti‐addition product is observed, whereas for the corresponding ynoate substrate, the stereoselectivity can be affected by the reaction conditions: in the presence of methanol as proton donor, the initial syn‐addition product can be trapped, whereas a syn/anti mixture is obtained in a non‐protic solvent. This is in sharp contrast to the carbocupration of the same ynone substrate with a cyanocuprate (RCu(CN)Li), which is highly selective for syn‐addition. The product selectivities can be understood from a detailed computational characterization of the reaction paths, and in particular from the relative stabilities of the vinyl cuprate and allenolate intermediates. It is suggested that the stereodetermining step is protonation of vinyl cuprate intermediates.
Syntheses, Crystal Structures and Magnetic Properties of Rb2RuO4 and K2RuO4.
Authors: Fischer Dieter , Hoppe Rudolf , Mogare Kailash M. , Jansen Martin 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Low‐Temperature Synthesis of LixMn0.67Ni0.33O2 (0.2 < x < 0.33) Nanowires with a Hexagonal Layered Structure.
Authors: Park Dae Hoon , Lim Seung Tae , Hwang Seong‐Ju , Yoon Chong‐Seung , Sun Yang‐Kook , Choy Jin‐Ho 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Electrochemical Deposition of Platinum from Aqueous Ammonium Hexachloroplatinate Solution.
Authors: Whalen John J. III , Weiland James D. , Searson Peter C. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Electrolytic Generation of Ozone on Antimony‐ and Nickel‐Doped Tin Oxide Electrode.
Authors: Wang Yun‐Hai , Cheng Shaoan , Chan Kwong‐Yu , Li Xiao Yan 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Sol—Gel Preparation and Characterization of Codoped Yttrium Aluminum Garnet Powders.
Authors: Leleckaite Asta , Kareiva Aivaras , Bettentrup Helga , Juestel Thomas , Meyer H.‐Juergen 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
The Autoionization of [TiF4] by Cation Complexation with [15]Crown‐5 to Give [TiF2([15]crown‐5)][Ti4F18] Containing the Tetrahedral [Ti4F18]2‐ Ion.
Authors: Decken Andreas , Jenkins H. Donald B. , Knapp Carsten , Nikiforov Grigory B. , Passmore Jack , Rautiainen J. Mikko 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
A Novel Series of Vanadium‐Sulfite Polyoxometalates: Synthesis, Structural, and Physical Studies.
Authors: Miras Haralampos N. , Raptis Raphael G. , Lalioti Nikolia , Sigalas Michael P. , Baran Peter , Kabanos Themistoklis A. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Acidity Trends in α,β‐Unsaturated Sulfur, Selenium, and Tellurium Derivatives: Comparison with C‐, Si‐, Ge‐, Sn‐, N‐, P‐, As‐, and Sb‐Containing Analogues.
Authors: Guillemin Jean‐Claude , Riague El Hassan , Gal Jean‐Francois , Maria Pierre‐Charles , Mo Otilia , Yanez Manuel 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of 2‐(N‐Substituted)‐2‐imidazolines and 2‐(N‐Substituted)‐1,4,5,6‐tetrahydropyrimidines.
Authors: Kan Wai Ming , Lin Shih‐Hsun , Chern Ching‐Yuh 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Ruthenium(III) Chloride—Catalyzed Ring Opening of Epoxides with Aromatic Amines.
Authors: De Surya K. , Gibbs Richard A. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Enantio‐ and Diastereoselective Synthesis of Highly Substituted Acylcyclopropanes from Homoaldol Products by Stereospecific Homoallylic Cyclization.
Authors: Kalkofen Rainer , Brandau Sven , Uenaldi Seda , Froehlich Roland , Hoppe Dieter 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
An Easy Two‐Step Reduction of Salicylic Acids and Alcohols to 2‐Methylphenols.
Authors: Mazzini Francesco , Salvadori Piero 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Catalysis by Ionic Liquid. A Green Protocol for the Stereoselective Debromination of vicinal‐Dibromides by [pmIm]BF4 under Microwave Irradiation.
Authors: Ranu Brindaban C. , Jana Ranjan 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
A General Thiolation of Magnesium Organometallics Using Tetramethylthiuram Disulfide.
Authors: Krasovskiy Arkady , Gavryushin Andrey , Knochel Paul 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Ruthenium‐Catalyzed Oxidative Cyanation of Tertiary Amines with Hydrogen Peroxide and Sodium Cyanide.
Authors: Murahashi Shun‐Ichi , Komiya Naruyoshi , Terai Hiroyuki 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
One‐Pot Sonogashira‐Coupling/Wittig Olefination Procedures.
Authors: Watanabe Masataka , Mataka Shuntaro , Thiemann Thies 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Direct Atom‐Efficient Esterification Between Carboxylic Acids and Alcohols Catalyzed by Amphoteric, Water‐Tolerant TiO(acac)2.
Authors: Chen Chien‐Tien , Munot Yogesh S. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Silphos [PCl3‐n(SiO2)n]: A Heterogeneous Phosphine Reagent for Formylation and Acetylation of Alcohols and Amines with Ethyl Formate and Acetate.
Authors: Iranpoor Nasser , Firouzabadi Habib , Jamalian Arezu 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Diastereomeric Molecular Recognition and Binding Behavior of Bile Acids by L/D‐Tryptophan‐Modified β‐Cyclodextrins.
Authors: Wang Hao , Cao Rui , Ke Chen‐Feng , Liu Yu , Wada Takehiko , Inoue Yoshihisa 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Synthesis of Bithiophenesilane Dendrimer of the First Generation.
Authors: Ponomarenko S. A. , Muzafarov A. M. , Borshchev O. V. , Vodopyanov E. A. , Demchenko N. V. , Myakushev V. D. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Baylis—Hillman Reactions of N‐Tosyl Aldomines and Aryl Aldehydes with 3‐Methylpenta‐3,4‐dien‐2‐one.
Authors: Zhao Gui‐Ling , Shi Min 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Gold(III)‐Catalyzed Nucleophilic Substitution of Propargylic Alcohols.
Authors: Georgy Marie , Boucard Valerie , Campagne Jean‐Marc 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Trimethylaluminum (TMA)‐Catalyzed Reaction of Alkynyllithiums with Ethylene Oxide: Increased Yields and Purity of Homopropargylic Alcohols.
Authors: Brummond Kay M. , McCabe Jamie M. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Stereoselective β‐Hydroxy‐α‐amino Acid Synthesis via an Ether‐Directed, Palladium‐Catalyzed Aza‐Claisen Rearrangement.
Authors: Fanning Kate N. , Jamieson Andrew G. , Sutherland Andrew 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Alkylation of Magnesium Enamide with Alkyl Chlorides and Fluorides.
Authors: Hatakeyama Takuji , Ito Shingo , Nakamura Masaharu , Nakamura Eiichi 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Lewis Acid‐Promoted Reactions of Zirconacyclopentadienes with Isocyanates. A One‐Pot Three‐Component Synthesis of Multiply‐Substituted Iminocyclopentadienes from one Isocyanate and Two Alkynes.
Authors: Lu Jiang , Mao Guoliang , Zhang Wenxiong , Xi Zhenfeng 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
A Highly Enantioselective Catalyst for Asymmetric Hydroformylation of [2.2.1]‐Bicyclic Olefins.
Authors: Huang Jinkun , et al. et al. 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Copper‐Catalyzed Cross‐ and Carbonylative Coupling Reactions of Alkynyliodonium Salts with Organoboronic Acids and Organostannanes.
Authors: Yu Chan‐Mo , Kweon Jae‐Hong , Ho Pil‐Su , Kang Sin‐Cheol , Lee Gong Yeal 
Published: January 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.