bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal behavior and phase morphology of miscible hydrogen‐bonded blends of poly(ϵ‐caprolactone) and enzymatically polymerized polyphenol
Authors: Li Jianchun , Fukuoka Tokuma , He Yong , Uyama Hiroshi , Kobayashi Shiro , Inoue Yoshio 
Published: April 2006

AbstractEnzymatically prepared novel polyphenol poly(4,4′‐dihydroxydiphenyl ether) (PDHDPE) is blended to modify the properties of biodegradable polyester poly(ϵ‐caprolactone) (PCL). Since the differential scanning calorimetry data show single composition‐dependent glass transition for each blend, PCL and PDHDPE are found to be miscible in the amorphous phase. The crystallization of PCL is depressed by PDHDPE because PDHDPE reduces the molecular mobility and the flexibility of molecular chains of PCL. The Fourier transform infrared spectra clearly indicate that PCL and PDHDPE interact through strong intermolecular hydrogen bonds formed between the carbonyl groups of PCL and the hydroxyl groups of PDHDPE. The increase of the long period, calculated on the basis of Bragg's law with the measurement of small‐angle X‐ray scattering, is found because the peak position of the profiles of Lorentz‐corrected intensity shifts to smaller angle. With the help of lamellar stack model and one‐dimensional correlation function, the accurate lamellar parameters are calculated. The increase of long period is induced by the increase of crystal thickness. The thermal treatment can effectively modify the thermal stability of PCL/PDHDPE blends with the introduction of an intermolecular coupling of the polymer to give crosslinked and/or branched products. It is also found that the addition of PDHDPE to PCL would obviously increase the Young's modulus of PCL. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 149–160, 2006
Evaluation of processing effects in injection‐molded amorphous and crystalline thermoplastics using an excimer laser
Authors: Sancaktar E. , Negandhi N. , Adwani S. 
Published: April 2006

AbstractThe ablation behavior of amorphous [polystyrene (PS), polycarbonate (PC)] and crystalline [PET, glass‐filled poly(butylene terephthalate) (PBT)] polymers by 248‐nm KrF excimer laser irradiation were investigated for different injection‐molding conditions, namely, injection flow rate, injection pressure, and mold temperature, as a possible method for evaluating processing effects in the specimens. For this purpose, dumbbell‐shaped samples were injection‐molded under different sets of processing conditions, and weight loss measurements were carried out for the different injection‐molding conditions. Some of the crystalline (PET) samples were annealed at different annealing times and temperatures. For PET, the weight loss decreased with increasing mold temperature and remained insensitive to injection flow rate. Annealing time and temperature significantly reduced weight loss in PET. For PBT, the weight loss due to laser ablation decreased with increasing material packing due to pressure, and it also showed some sensitivity to flow rate variation. The major effect was seen with glass‐filled PBT samples. The weight loss decreased drastically with increasing glass fiber content. Laser ablation allowed us to observe process‐induced fiber orientation by scanning electron microscopy in PBT samples. For PS and PC, the weight loss increased with increasing injection flow rate and mold temperature and decreased with increasing injection pressure. The position near the gate showed higher ablation than the position at the end for all the conditions. A decrease in the material orientation with injection speed and mold temperature led to an increase in the weight loss, whereas an increase in the injection pressure, and consequently orientation, led to a lower weight loss for PS and PC. Higher residual stress samples showed higher weight losses. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 2006
Influence of protein content on the physicochemistry of poly(ϵ‐caprolactone) microparticles
Authors: Celestin Youan Bi‐Botti 
Published: April 2006

AbstractThe aim of this work was to determine the influence of protein content on the physicochemical properties of protein‐loaded poly(ε‐caprolactone) (PCL). To achieve this goal, bovine serum albumin (BSA), an example of protein was encapsulated within PCL matrix by emulsion solvent evaporation method. The polymer matrix's rheological properties, hydrophobicity, molecular weight (MW), and thermal behavior were determined. Particle characteristics such as BSA loading, surface area, mean size, morphology, and in vitro release profile were also assessed. After encapsulation process, the polymer crystallinity and crystallization point were markedly increased suggesting that a nucleation phenomenon occurred. The increase in PCL MW (from 46. 7 to 179.4 kDa) led to an increase of both particle size and encapsulation efficiency that was consistent with rheological data. The increase of protein content from 1.6 to 11.5% (w/w) influenced considerably particle's specific surface area and decreased the rate of protein release. Together, these results suggest that beside the nature of the carrier polymer, protein content may have implication on their controlled release, the coating of particle by protein, and on the carrier polymer chemistry and degradation. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1042–1050, 2006
Effect of styrene–isopren–styrene addition on the recycled polycarbonate/acrylonitrile–butadiene–styrene polymer blends
Authors: Taşdemi̇r Münir , Karatop Şener 
Published: April 2006

AbstractInterfacial agents as compatibilizers have recently been introduced into polymer blends to improve microstructure and mechanical properties of thermoplastics. In this way, it is possible to prepare a mixture of polymeric materials that can have superior mechanical properties over a wide temperature range. In this study, an incompatible blend of Polycarbonate (PC) and Acrylonitrile Butadiene Styrene (ABS) Copolymer were made compatible by addition of 5, 10, and 20% Styrene–Isopren–Styrene Copolymer (SIS). The mixing operation was conducted using a twin‐screw extruder. The morphology and the compatibility of the mixtures were examined by SEM and DSC techniques. Furthermore, the elastic modulus, tensile and yield strengths, percentage elongation, hardness, melt flow index, Izod impact resistance, heat deflection temperature (HDT), Vicat softening point values of polymer alloys of various ratios were determined. It was found that addition of SIS to the structures decreased the tensile strength, yield strength, elastic modulus, and hardness, whereas it increased Izod impact strength and percentage elongation values. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 559–566, 2006
Synthesis and characterization of maleated ionomers via ring‐opening reaction of epoxidized styrene‐butadiene rubber with potassium hydrogen maleate and study of their behavior as compatibilizer
Authors: Xie Hong‐Quan , Chen Yong , Yang Wei , Xie Dong 
Published: April 2006

AbstractA novel method for synthesizing maleate ionomer of (styrene‐co‐butadiene) rubber (SBR) from epoxidized SBR was developed. The epoxidized SBR was prepared via epoxidation of SBR with performic acid formed in situ by H2O2 and formic acid in cyclohexane. The maleated ionomer was obtained by ring‐opening reaction of the epoxidized SBR solution with an aqueous solution of potassium hydrogen maleate. The optimum conditions were studied. It was found that it is necessary to use phase transfer catalyst and ring‐opening catalyst for enhancing the epoxy group conversion. To obtain 100% conversion addition of dipotassium maleate is important. The product was characterized by FTIR spectrophotometry and transmission electron microcroscopy (TEM). The results showed that the product was really an ionomer with domains of maleate ionic groups. Some properties of the ionomer, such as water absorbency, oil absorbency and dilute solution behavior were studied. With increasing ionic groups, the water absorbency of the ionomer increases, whereas the oil absorbency decreases. The dilute solution viscosity of the ionomer increases abruptly with increasing ionic group content. The ionomer can be used as a compatibilizer for the blends of SBS and chlorosulfonated polyethylene (CSPE). Addition of a small amount of the ionomer to the blend can enhance the mechanical properties of the blends. 3 wt % ionomer based on the blend can increase the tensile strength and ultimate elongation of the blend nearly twice. The compatibility of the blends enhanced by adding the ionomer was shown by scanning electron microscopy. The blend of equal parts of SBS and CSPE compatibilized by the ionomer behaves as an oil resistant thermoplastic elastomer. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 792–798, 2006
Toughened composites prepared from castor oil based polyurethane and soy dreg by a one‐step reactive extrusion process
Authors: Chen Yun , Zhang Lina , Deng Rui , Liang Hui 
Published: April 2006

AbstractA series of water‐resistant composites were successfully prepared from a mixture of soy dreg (SD), castor oil, and 2,4‐toluene diisocyanate (TDI) by a one‐step reactive extrusion (REX) process. The structure and properties of the composites were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, dynamic mechanical analysis, tensile testing, and swelling experiments. The results indicated that the toughness of the composites prepared from castor oil based polyurethane and SD was significantly improved. In this case, TDI played an in situ compatibilization role through the crosslinking reaction of NCO groups with NH2, NH, and OH groups in SD and castor oil. With an increase in the molar ratio of NCO groups of TDI and OH groups of castor oil, the degree of crosslinking, tensile strength, glass‐transition temperature, water resistivity, and solvent resistivity of the composites increased. With an increase in the SD content of the composites, the tensile strength and solvent resistivity of the composites increased because of the reinforcement of the cellulose component in SD. This work provided a simple and effective way of preparing SD‐based composites by a REX process. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 953–960, 2006
Study on the suppression mechanism of water mist on poly(methyl methacrylate) and poly(vinyl chloride) flames
Authors: Weng W. G. , Qin J. , Chow W. K. 
Published: April 2006

AbstractIn this study, the action of water mists on poly(methyl methacrylate) (PMMA) and poly(vinyl chloride) (PVC) in a confined space under different external radiant heat fluxes was studied. Water mist was generated by a downward‐directed single pressure nozzle. Physical characteristics of the water mist were measured by laser doppler velocimetry and the adaptive phase doppler velocimetry system. The heat release rate, oxygen, carbon dioxide, and carbon monoxide concentrations, and other important parameters of the interaction under various experimental conditions were measured with cone calorimeter. To explain experimental results, the chemical suppression mechanisms of water mist extinguishing PMMA and PVC flames are investigated from literatures, and the corresponding proposed chemical reactions with water mist are presented. The investigation shows that aromatic compounds are formed by light hydrocarbon products with water mist for PMMA flame. Otherwise, for PVC flame, the decrease of temperature with water mist prevents aromatic compounds from oxidation and degradation. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1130–1139, 2006
A Theoretical Study of the Ion—Molecule Chemistry of K+×X Complexes (X: O, O2, N2, CO2, H2O): Implications for the Upper Atmosphere.
Authors: Plane John M. C. , Plowright Richard J. , Wright Timothy G. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Local Structure and Chemical Bonding of Protonated LixMn2O4 Spinels from First Principles.
Authors: Fang C. M. , de Wijs G. A. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Experimental Proof for Negative Oxidation States of Platinum: ESCA‐Measurements on Barium Platinides.
Authors: Karpov Andrey , Konuma Mitsuharu , Jansen Martin 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioseletive Indium(III) Trifluoromethanesulfonate‐Catalyzed Hydrothiolation of Non‐Activated Olefins.
Authors: Weiwer Michel , Coulombel Lydie , Dunach Elisabet 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sulfenyl Halides in the Synthesis of Heterocycles. Part 2. Cyclization in Reactions of Hetarenesulfenyl Chlorides with 3,3‐Dimethyl‐1‐butene.
Authors: Borisov A. V. , Belsky V. K. , Goncharova T. V. , Borisova G. N. , Osmanov V. K. , Matsulevich Zh. V. , Frolova N. G. , Savin E. D. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Reduction of Perfluoroalkyl Ketones with Lithium Alkoxides.
Authors: Sokeirik Yasser S. , Sato Kazuyuki , Omote Masaaki , Ando Akira , Kumadaki Itsumaro 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of β‐Aminoacrylates and β‐Enaminones Catalyzed by Zn(OAc)2×2H2O.
Authors: Vohra Ramandeep Kaur , Renaud Jean‐Luc , Bruneau Christian 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Fluorination of Fluoro‐cyclobutene with High‐Valency Metal Fluoride.
Authors: Mizukado Junji , Matsukawa Yasuhisa , Quan Heng‐dao , Tamura Masanori , Sekiya Akira 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Synthesis of o‐Alkynyl‐N‐pivaloylanilines from o‐Acyl‐N‐pivaloylanilines and Lithium Trimethylsilyldiazomethane.
Authors: Hari Yoshiyuki , Kanie Tomoki , Aoyama Toyohiko 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
L‐Prolinamide‐Catalyzed Direct Nitroso Aldol Reactions of α‐Branched Aldehydes: A Distinct Regioselectivity from that with L‐Proline.
Authors: Guo Hai‐Ming , Cheng Li , Cun Lin‐Feng , Gong Liu‐Zhu , Mi Ai‐Qiao , Jiang Yao‐Zhong 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Room‐Temperature Cannizzaro Reaction under Mild Conditions Facilitated by Magnesium Bromide Ethyl Etherate and Triethylamine.
Authors: Abaee M. Saeed , Sharifi Roholah , Mojtahedi Mohammad M. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Aldol‐Type Reaction of Aldehydes with Ethyl Diazoacetate Using Quaternary Ammonium Hydroxide as the Base.
Authors: Varala Ravi , Enugala Ramu , Nuvula Sreelatha , Adapa Srinivas R. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phosphorus Pentasulfide: A Mild and Versatile Reagent for the Preparation of Thioamides from Nitriles.
Authors: Kaboudin Babak , Elhamifar Dawood 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioselective Synthesis of 1‐Arylnaphthalenes from N‐Tosylaziridine Derivatives.
Authors: Lee Ka Young , Kim Seung Chan , Kim Jae Nyoung 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Azetidin‐2,3‐dione Synthon for Stereoselective Synthesis of cis‐ and trans‐C‐3‐Alkyl/Aryl Azetidin‐2‐ones.
Authors: Tiwari Dharmendra Kumar , Gumaste Vikas K. , Deshmukh Abdul Rakeeb A. S. 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Synthesis of Amino Acid‐Derived β‐Lactams. Experimental Evidence for TADDOL as a Memory of Chirality Enhancer.
Authors: Bonache M. Angeles , Lopez Pilar , Martin‐Martinez Mercedes , Garcia‐Lopez M. Teresa , Cativiela Carlos , Gonzales‐Muniz Rosario 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium‐Catalyzed Intramolecular [4 + 2] Cycloadditions of Alkynyl Halides.
Authors: Yoo Woo‐Jin , Allen Anna , Villeneuve Karine , Tam William 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Formation of Highly Ordered Porphyrin Adlayers Induced by Electrochemical Potential Modulation.
Authors: Yoshimoto Soichiro , Yokoo Nozomi , Fukuda Takamitsu , Kobayashi Nagao , Itaya Kingo 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Strong Red Fluorescent Probes Suitable for Detecting Hydrogen Peroxide Generated by Mice Peritoneal Macrophages
Authors: Xu Kehua , Tang Bo , Huang Hui , Yang Guiwen , Chen Zhenzhen , Li Ping , An Liguo 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of ortho‐Cyanopyridylboronic Acids and Esters Toward Cyano‐Functionalized Bipyridines.
Authors: Cailly Thomas , Fabis Frederic , Bouillon Alexandre , Lemaitre Stephane , Sopkova Jana , de Santos Olivieira , Rault Sylvain 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Acetonitrile‐Mediated Synthesis of 2,4‐Dichloroquinoline from 2‐Ethynylanilines and 2,4‐Dichloroquinazoline from Anthranilonitrile.
Authors: Lee Jae Hak , Lee Byoung Se , Shin Hyunik , Nam Do Hyun , Chi Dae Yoon 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
cis‐Dihydroxylation of Unsaturated Potassium Alkyl‐ and Aryltrifluoroborates.
Authors: Molander Gary A. , Figueroa Ruth 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Novel Diethyl Indolylphosphonates and Tetraethyl Indolyl‐1,1‐bisphosphonates by Michael Addition.
Authors: Couthon‐Gourves Helene , Simon Gaelle , Haelters Jean‐Pierre , Corbel Bernard 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Isolation, Synthesis, and Antitumor Activities of a Novel Class of Podocarpic Diterpenes.
Authors: Xiong Yi , Wang Kuiwu , Pan Yuanjiang , Sun Hongxiang , Tu Jue 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Application of RCM Reaction in the Construction of ABC Ring (II) of Micrandilactone A (III).
Authors: Zhang Yan‐Dong , Tang Ye‐Feng , Luo Tuo‐Ping , Shen Juan , Chen Ji‐Hua , Yang Zhen 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Enantioselective Synthesis of α‐Hydroxy‐β‐amino Acids Using the Claisen and Curtius Rearrangements.
Authors: Jung Doo Young , Kang Sol , Chang Sukbok , Kim Yong Hae 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lycoperine A, a Novel C27N3‐Type Pentacyclic Alkaloid from Lycopodium hamiltonii, Inhibiting Acetylcholinesterase.
Authors: Hirasawa Yusuke , Kobayashi Jun'ichi , Morita Hiroshi 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Concise Approach to the “Higher Sugar” Core of the Nucleoside Antibiotic Hikizimycin (I).
Authors: Fuerstner Alois , Wuchrer Margarita 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
η4‐Pyrone Iron(0)carbonyl Complexes as Effective CO‐Releasing Molecules (CO‐RMs).
Authors: Fairlamb Ian J. S. , Duhme‐Klair Anne‐Kathrin , Lynam Jason M. , Moulton Benjamin E. , O'Brien Ciara T. , Sawle Philip , Hammad Jehad , Motterlini Roberto 
Published: April 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Template‐Guided Organization of Chromonic Liquid Crystals into Micropatterned Anisotropic Organic Solids.
Authors: Tam‐Chang Suk‐Wah , Helbley Jennifer , Carson Travis D. , Seo Wonewoo , Iverson Isaac K. 
Published: April 2006

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