bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface modification of textiles by glow discharge technique: Part II: Low frequency plasma treatment of wool fabrics with acrylic acid
Authors: Kutlu Bengi , Aksit Aysun , Mutlu Mehmet 
Published: January 2010

AbstractIn this study, wool fibers are modified by low frequency plasma polymerization of acrylic acid regarding to its' hydrophobic character due to cuticular cells at their surfaces. Variables of the plasma glow discharge processes were power (40–100 W) and exposure time (5–45 min). The effect of plasma modification in the performance properties of wool were investigated on the basis of hydrophilicity of wool, average wrinkle recovery angle, and breaking strength. The surface chemical structures of fabrics were examined with x‐ray photoelectron spectroscopy. The hydrophobic wool fabric became hydrophilic after all plasma treatments except one (40W–5 min). Average wrinkle recovery angle of the treated fabrics were between 157 and 178°, while that of untreated fabric was 180°. The treated fabrics had a little bit lower angles according to the untreated fabric. However, even the lowest value as 157° means that the fabric has a good crease resistance property. The breaking strengths of fabrics were increased up to 26% after the plasma treatments. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Effect of treatment of Bis(3‐triethoxysilyl propyl)tetrasulfane on physical property of in situ sodium activated and organomodified bentonite clay – SBR rubber nanocomposite
Authors: Chakraborty Sugata , Kar Saptarshi , Dasgupta Saikat , Mukhopadhyay Rabindra , Bandyopadhyay Samar , Joshi Mangala , Ameta Suresh C. 
Published: January 2010

AbstractThis study describes the effect of treatment of Bis(3‐triethoxysilyl propyl)tetrasulfane (silane coupling agent, Si69, TESPT) on in situ sodium activated, organo modified bentonite clay – styrene butadiene rubber (SBR) nanocomposite. transmission electron microscopy and Wide angle X‐ray diffraction indicated the intercalation as well as partial exfoliation in both the organoclay and silane treated organoclay compound. It was found that about 5% of silane with respect to clay was the optimum dose for the treatment. Around 15% improvement in tensile and tear strength was observed due to silane treatment. Silane treated organoclay exhibited substantial improvement of the fatigue life, compression set, and rebound property. A detailed study of physical property was carried out. A comparison with low and high structure carbon black filled compound was also carried out. It revealed that the silane treatment helped organoclay to achieve comparable property of the compound having equivalent carbon black loading. Probable mechanism of interaction of silane with clay has also been proposed. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Rubber‐like thermosetting epoxy asphalt composites exhibiting atypical yielding behaviors
Authors: Kang Yang , Chen Zhiming , Jiao Zhen , Huang Wei 
Published: January 2010

AbstractRubber‐like thermosetting epoxy asphalt composites (REACs) were prepared by curing epoxy resin (diglycidyl ether of bisphenol A) with curing agents system made up of maleated petroleum asphalt, adipic acid, and methylhexahydrophthalic anhydride. REACs' glass transition temperatures (Tg) and mechanics performances were investigated by differential scanning calorimetry (DSC) and universal tester, respectively. DSC results indicated that REACs had homogeneous phase structures, and theirTgwere lower than room temperature. Large elongation at break (εb), as high as 150–286%, and atypical yielding behaviors similar to so‐called “hard elastic” thermoplastics were observed simultaneously for the first time as to thermosetting epoxy composites at room temperature. The striking characteristics of REACs were ascribed to the formation of unique asphalt‐filled bimodal networks, consisting of simultaneous cured maleated asphalt short‐chain and dicarboxylic acid long‐chain interpenetrating bimodal networks and wherewith filled unmaleated asphalt. The experimental results suggest that these inexpensive REACs may find promising applications in many engineering fields. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Surface modification of nylon membrane by glycidyl methacrylate graft copolymerization for antibody immobilization
Authors: Jackeray Richa , Jain Swati , Chattopadhyay Sruti , Yadav Manu , Shrivastav T. G. , Singh Harpal 
Published: January 2010

AbstractSurface of nylon membrane was modified by the graft copolymerization of glycidyl methacrylate (GMA) using persulfate and thiosulfate as redox initiator system. Effect of various reaction parameters such as initiator concentration, monomer concentration, polymerization time, and temperature on degree of grafting was also studied. Maximum grafting of 100% was achieved by using equimolar concentration (0.008M) of redox initiator and 0.5M of GMA monomer at 70°C in 60 min. Grafted nylon membranes with various graft levels of GMA were characterized by various techniques such as fourier transform infrared spectroscopy, thermo gravimetric analysis, and scanning electron microscopy. The GMA grafted nylon (NyM‐g‐GMA) membranes with different graft levels were evaluated as a support for immobilization of rabbit anti goat antibody (RAG IgG). Antibody (Ab) immobilized NyM‐g‐GMA membranes were evaluated using ELISA and Bradford protein estimation method. Nylon membrane with 60% graft level showed optimum immobilization of Ab at RAG IgG conc. of 0.625 μg/mL with low nonspecific binding. Maximum immobilization efficiency (I.E.%) of 56% was observed for membrane with 60% graft level at 50 μg/mL of RAG IgG in PBS (pH 7.4). Ab immobilized NyM‐g‐GMA discs were found to be stable up to 6 weeks at 4°C and 2 days at 37°C. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Comparative study of additives on visualized dynamic sorption behavior of perylene in cellulose acetate film by confocal laser scanning microscope technique
Authors: Hasegawa Takashi , Matsui Toshiro , Matsumoto Kiyoshi 
Published: January 2010

AbstractThe sorption behavior of a fluorescent reagent into a polymer film was visualized by confocal laser scanning microscope (CLSM), and the effect of additives on the sorption was examined. Perylene and cellulose acetate (CA) were used as a fluorescent reagent and a polymer material, respectively. Perylene dissolved in additives of glycerol triacetate (GTA), triethylene glycol diacetate (TEGDA), 1,3‐butylene glycol diacetate (BGDA), paraffin liquid, and poly(ethylene glycol) 200 (PEG) were added onto CA film. At optimized CLSM conditions (scanning range of a 10 μm‐depth from the CA film surface with 1 μm intervals and a scanning speed of 1 fps), the sorption of perylene at the inner CA film was determined. Diffusion coefficients of perylene in the CA film were calculated according to Fick's second law. When perylene was dissolved in TEGDA, the highest diffusion coefficient, 8.9 × 10−15 m2/s, among the additives was obtained because of high affinity of TEGDA with perylene, whereas the lowest diffusion coefficient was observed in paraffin liquid, which showed a low affinity with perylene. The diffusion coefficients of perylene in GTA, BGDA, and PEG also revealed that physical parameters, such as molecular size and viscosity, of the additives were additional factors affecting the perylene diffusivity in the CA film. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Shrinkage in extruded moisture crosslinked silane‐grafted polyethylene wire insulation
Authors: Ghosh‐Dastidar Abhijit , Cogen Jeffrey M. 
Published: January 2010

AbstractShrinkage studies were conducted on silane‐grafted moisture crosslinkable linear low‐density polyethylene (LLDPE) insulation stripped from extrusion‐coated copper conductors. The insulation, which possesses orientation imparted during melt processing, showed remarkable levels of shrinkage when heated above the melting point of the polymer, though the shrinkage can be greatly reduced by moisture crosslinking the insulation below the melting point of the LLDPE. Shrinkage along the direction of orientation was accompanied by swelling in the other dimensions. Differential scanning calorimetry (DSC) revealed several trends, including a decrease in both melting point and degree of crystallinity with increasing crosslinking. In the first heat after annealing, crosslinked samples exhibited a shoulder in the DSC endotherm several degrees below the normal melting point of the LLDPE. In agreement with prior studies in silane‐grafted HDPE, relaxation of orientation by annealing appeared to result in an increase in the enthalpy of melting. The degree of shrinkage was also found to be dependent on the insulation thickness, which is attributed to faster cooling in thinner insulation immediately following extrusion coating. The results highlight the extensive built in stresses that can be frozen into polymer layers in fabricated articles due to melt orientation. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Preparation and properties of sulfopropyl chitosan derivatives with various sulfonation degree
Authors: Tsai Huang‐Shian , Wang Yen‐Zen , Lin Jong‐Jing , Lien Wan‐Fu 
Published: January 2010

AbstractIn this investigation, chitosan (CS) is modified by propane sultone via a sulfonation reaction to create various degrees of sulfonation. The sulfonated chitosan (SCS) has a pendant alkyl sulfonic group dangling at the side chain, which can improve its hydrophilicity and water solubility. Elemental analysis, Fourier transform infrared spectroscopy (FTIR) and 13C nuclear magnetic resonance (13C NMR) were applied to identify the structure by determining the distribution of the substituents in the product. The degree of sulfonation in the SCS can be controlled and the hydrogen bonding interaction can be reduced by varying the degree of sulfonation. A solubility test proved that solubility increased with degree of substitution at over a wide range of pH values. X‐ray diffraction patterns of SCS samples demonstrated that the crystallinity declined as the degree of sulfonation increased. Thermogravimetric analysis and modulated differential scanning calorimetry (MDSC) results indicated that thermal stability fell but water absorbance increased with the degree of sulfonation. More water‐soluble SCS is thus obtained. The controllable different sulfonation degree of the CS polymer suggests new possibilities for the application of CS‐based materials. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Diffusion coefficients of polychlorinated biphenyls and polycyclic aromatic hydrocarbons in polydimethylsiloxane and low‐density polyethylene polymers
Authors: Rusina Tatsiana P. , Smedes Foppe , Klanova Jana 
Published: January 2010

AbstractDiffusion coefficients (D) of polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) were determined by film‐stacking technique in low‐density polyethylene (LDPE) and two types of polydimethylsiloxane (PDMS) (also known as silicone rubber, SR) with the trade names AlteSil™ and Silastic®. The estimated values of D for PCBs and PAHs over a wide range of hydrophobicity were 2–2.5 orders of magnitude lower in LDPE than in SR polymers. Log D (m2 s−1) of PCBs ranged from −10.1 to −10.9 for SRs and from −12.4 to −13.7 for LDPE. For PAHs these ranges were −9.8 to −11.4 for SRs and −11.9 to −13.7 for LDPE. Compared with the D values calculated in water, D were 1–2 and 3–4 orders of magnitude lower in SR and LDPE, respectively. For PAH molecules, D was lower than for PCBs with a similar molecular weight, probably because of their more rigid structure. The range of log D for PCBs in SR was only 0.5 log units (factor of 3.2) versus 1.2 log units (factor of 16) in LDPE. Although compound classes showed different relations, a linear relation of D with total surface area was the most universal. This relation may be used for prediction of D values in SR and LDPE polymers for other organic compounds. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
DC electrical conductivity of polyazomethinethiosemicarbazone metal complexes
Authors: El‐Shekeil Ali , Al‐Yusufy Fatma , Abdulla Abdul‐Hafeedh A. 
Published: January 2010

AbstractPolyazomethinethiosemicarbazone (PATS) metal complexes of Ni(II), Co(II), Cu(II), Zn(II), Cd(II) and Hg(II) metal ions were prepared by reacting the polymer ligand (PATS) with the appropriate metal salt in refluxing DMSO. Elemental analyzes as well as FTIR and electronic spectral data are presented to confirm the formulation of the isolated materials. The spectral data show that the ligand polymer is bonded to the metal ions via the thiol sulfur atom and coordinated through the nitrogen of azomethine group. The DC electrical conductivity measurements of PATS and its metal complexes were measured in the range 300–500 K in the annealed and 5% iodine doped forms. The products gave electrical conductivity in the semiconducting region that increased by heat. The DC electrical conductivity is interpreted using the band gap theory using solitons, polarons and bipolarons. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Filled polymers with high nanoparticles concentration—Synthesis and properties
Authors: Burunkova Julia E. , Denisyuk Igor Yu , Williams Todd R. 
Published: January 2010

AbstractHigh refractive index optical compositions based on polymer matrices filled with high concentrations of ZnS nanoparticles were developed. These materials have good optical properties and processability like usual polymers, and they are suitable for factory scale use. At 25 vol % ZnS nanoparticles concentration an increase in refractive index up to 0.25 in 150 um transparent film was obtained. A process was develope for formation of polymeric compositions consisting of polymer filled with high concentrations of inorganic crystalline nanoparticles. Effects connected to high concentration of nanoparticles in the polymer were discussed. Optical properties of these materials were investigated. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Synergistic flame retardant effect of cerium oxide in ethylene‐vinyl acetate/aluminum hydroxide blends
Authors: Jiao Chuan‐Mei , Chen Xi‐Lei 
Published: January 2010

AbstractThe flammability characterization and synergistic flame retardant effect of cerium oxide (CeO2) in the ethylene‐vinyl acetate/aluminum hydroxide blends were studied using limiting oxygen index (LOI), UL‐94 test, and cone calorimeter test (CCT). The results showed that the addition of a given amount of CeO2 apparently increased the LOI value and UL‐94 rating. The data obtained from the CCT indicated that the addition of CeO2 greatly decreased the heat release rate and prolonged the combustion time. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Perfusion seeding of channeled elastomeric scaffolds with myocytes and endothelial cells for cardiac tissue engineering
Authors: Maidhof Robert , Marsano Anna , Lee Eun Jung , Vunjak‐Novakovic Gordana 
Published: January 2010

AbstractThe requirements for engineering clinically sized cardiac constructs include medium perfusion (to maintain cell viability throughout the construct volume) and the protection of cardiac myocytes from hydrodynamic shear. To reconcile these conflicting requirements, we proposed the use of porous elastomeric scaffolds with an array of channels providing conduits for medium perfusion, and sized to provide efficient transport of oxygen to the cells, by a combination of convective flow and molecular diffusion over short distances between the channels. In this study, we investigate the conditions for perfusion seeding of channeled constructs with myocytes and endothelial cells without the gel carrier we previously used to lock the cells within the scaffold pores. We first established the flow parameters for perfusion seeding of porous elastomer scaffolds using the C2C12 myoblast line, and determined that a linear perfusion velocity of 1.0 mm/s resulted in seeding efficiency of 87% ± 26% within 2 hours. When applied to seeding of channeled scaffolds with neonatal rat cardiac myocytes, these conditions also resulted in high efficiency (77.2% ± 23.7%) of cell seeding. Uniform spatial cell distributions were obtained when scaffolds were stacked on top of one another in perfusion cartridges, effectively closing off the channels during perfusion seeding. Perfusion seeding of single scaffolds resulted in preferential cell attachment at the channel surfaces, and was employed for seeding scaffolds with rat aortic endothelial cells. We thus propose that these techniques can be utilized to engineer thick and compact cardiac constructs with parallel channels lined with endothelial cells. © 2010 American Institute of Chemical Engineers Biotechnol. Prog., 2010
Modeling with a view to target identification in metabolic engineering: A critical evaluation of the available tools
Authors: Maertens Jo , Vanrolleghem Peter A. 
Published: January 2010

AbstractThe state of the art tools for modeling metabolism, typically used in the domain of metabolic engineering, were reviewed. The tools considered are stoichiometric network analysis (elementary modes and extreme pathways), stoichiometric modeling (metabolic flux analysis, flux balance analysis, and carbon modeling), mechanistic and approximative modeling, cybernetic modeling, and multivariate statistics. In the context of metabolic engineering, one should be aware that the usefulness of these tools to optimize microbial metabolism for overproducing a target compound depends predominantly on the characteristic properties of that compound. Because of their shortcomings not all tools are suitable for every kind of optimization; issues like the dependence of the target compound's synthesis on severe (redox) constraints, the characteristics of its formation pathway, and the achievable/desired flux towards the target compound should play a role when choosing the optimization strategy. © 2010 American Institute of Chemical Engineers Biotechnol. Prog., 2010
HER2‐ and EGFR‐Specific Affiprobes: Novel Recombinant Optical Probes for Cell Imaging
Authors: Lyakhov Ilya , Zielinski Rafal , Kuban Monika , Kramer‐Marek Gabriela , Fisher Robert , Chertov Oleg , Bindu Lakshman , Capala Jacek 
Published: January 2010

AbstractThe human epidermal growth factor receptors, EGFR and HER2, are members of the EGFR family of cell‐surface receptors/tyrosine kinases. EGFR‐ and HER2‐positive cancers represent a more aggressive disease with greater likelihood of recurrence, poorer prognosis, and decreased survival rate, compared to EGFR‐ or HER2‐negative cancers. The details of HER2 proto‐oncogenic functions are not deeply understood, partially because of a restricted availability of tools for EGFR and HER2 detection (A. Sorkin and L. K. Goh, Exp. Cell Res. 2009, 315, 683–696). We have created photostable and relatively simple‐to‐produce imaging probes for in vitro staining of EGFR and HER2. These new reagents, called affiprobes, consist of a targeting moiety, a HER2‐ or EGFR‐specific Affibody® molecule, and a fluorescent moiety, mCherry (red) or EGFP (green). Our flow cytometry and confocal microscopy experiments demonstrated high specificity and signal/background ratio of affiprobes. Affiprobes are able to stain both live cells and frozen tumor xenograph sections. This type of optical probe can easily be extended for targeting other cell‐surface antigens/ receptors.
ChemInform Abstract: Microwave‐Assisted Cycloadditions of 2‐Alkynylbenzonitriles with Sodium Azide: Selective Synthesis of Tetrazolo[5,1‐a]pyridines and 4,5‐Disubstituted‐2H‐1,2,3‐triazoles.
Authors: Tsai Chih‐Wei , Yang Shyh‐Chyun , Liu Ya‐Ming , Wu Ming‐Jung 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Mild Room‐Temperature Palladium‐Catalyzed C3‐Arylation of 2(1H)‐Pyrazinones via a Desulfitative Kumada‐Type Cross‐Coupling Reaction.
Authors: Mehta Vaibhav P. , Modha Sachin G. , Van der Eycken Erik 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reactions of Radicals Generated from 1‐Ethyl‐1,4‐diazinium Salts: Addition to the C—C Triple Bond versus Dimerization.
Authors: Rusinov Gennadiy L. , Verbitskiy Egor V. , Slepukhin Pavel A. , Zabelina Olga N. , Kodess Mikhail I. , Ezhikova Marina A. , Charushin Valeriy N. , Chupakhin Oleg N. 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Study of the Interaction of Salicyl Aldehydes with Epichlorohydrin: A Simple, Convenient, and Efficient Method for the Synthesis of 3,6‐Epoxy[1,5]dioxocines.
Authors: Janeliunas Dainius , Daskeviciene Maryte , Malinauskas Tadas , Getautis Vytautas 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reinvestigation of Alternative Method for the Preparation of Dibenzo[b,f][1,4]oxazepine.
Authors: Fakhraian Hossein , Nafary Yaser 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Asymmetric Synthesis of Chiral Tertiary Organoboronic Esters Through Conjugate Boration of β‐Substituted Cyclic Enones.
Authors: Chen I‐Hon , Yin Liang , Itano Wataru , Kanai Motomu , Shibasaki Masakatsu 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Towards the Total Synthesis of 3‐Hydroxyvibsanin E.
Authors: Schwartz Brett D. , Denton Justin R. , Bernhardt Paul V. , Davies Huw M. L. , Williams Craig M. 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Furanosyl C‐1 Glycals Through Palladium‐Catalyzed Reactions of a Furanosyl 2,3‐Anhydro‐exo‐glycal.
Authors: Gomez Ana M. , Pedregosa Ana , Barrio Aitor , Valverde Serafin , Lopez J. Cristobal 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.