bluuebunny/crossref_metadata_2025_split huggingface dataset:
New Dolabellanes from the Taiwanese Soft Coral Clavularia Inflata
Authors: Shen Ya‐Ching , Pan Yu‐Ling , Ko Chin‐Lien , Kuo Yao‐Haur , Chen Ching‐Yeu 
Published: May 2015

AbstractBioassay‐directed fractionation of the acetone extract of Clavularia inflata collected in Green Island has afforded two new dolabellane diterpenoids, designated as clavinflols A (4) and B (5) in addition to the reported (1R*,12R*)‐dolabella‐4(16),7,10‐triene‐3,13‐dione (1), stolonidiol (2) and stolonidiol monoacetate (3). The structures of compounds 4 and 5 were determined on the basis of 1D and 2D‐NMR techniques including COSY, HSQC, HMBC and NOESY experiments, and acetylation which yielded derivatives 6 and 7, respectively. Pharmacological study revealed that compounds 1–3 and 5 exhibited cytotoxicity against human oral epidermoid carcinoma (KB) cells while compound 4 showed selective activity toward human Hepa cells.
Computational Studies of the Growth Mechanism of Small Fullerenes: A Ring‐Stacking Model
Authors: Lin Wen‐Hsin , Mishra Rama K. , Lin Ying‐Ting , Lee Shyi‐Long 
Published: May 2015

AbstractA ring‐stacking model for the fullerene growth mechanism has been analyzed using the semiempirical AM1 scheme. Following different routes, small fullerenes C28 (Td and D2), C26 (D3h) and C24 (D6d) have been constructed from monocyclic/polycyclic precursors and circumscribing them with appropriate carbon belts. The deformation energies (DE) and the average bond lengths <R> of the precursors have been computed. The DE values suggest that there is a chance of bond cleavage of the polycyclic precursors as the growth process proceeds towards the cage formation. On the other hand, the monocyclic precursors are found to have significantly lower deformation energies than the polycyclic precursors. Further analyzing <R> values of the polycyclic and monocyclic cases at different stages, it is observed that the <R> values of the polycyclic cases decrease gradually, depicting a shrink in the precursors which may be detrimental to the growth process, whereas monocyclic precursors tend to swell, corroborating the tendency of the system to grow, which may be conducive for the growth process.
Calibration of Relativistic Energy‐Consistent Small‐Core Pseudopotentials for 3d‐Transition Metals
Authors: Sheu Jeng‐Horng , Lee Shyi‐Long , Dolg Michael 
Published: May 2015

AbstractThe generation of two‐component relativistic energy‐consistent small‐core ab initio pseudopotentials based on multi‐configuration all‐electron Dirac‐Hartree‐Fock reference data is briefly described for the 3d‐transition metals Sc to Ni. The one‐component scalar‐relativistic pseudopotentials generated by averaging over spin are tested in large‐scale correlated calculations for atomic excitation and ionization energies using even‐tempered uncontracted 25s20p15d10f8g6h valence basis sets. Comparision to experimental data demonstrates the accuracy of the pseudopotentials. In addition, preliminary results of a molecular calibration study for the spectroscopic constants of ScO in its 2Σ+ ground state are presented (Re = 1.666 Å, De ≈ 6.94 — 7.02 eV, ωe = 984 cm−1) and confirm the good transferability of the atom‐adjusted pseudopotentials to a molecular environment.
Integral Representation of Heisenberg Operators and the Semiclassical Approximation
Authors: Shao Jiushu 
Published: May 2015

AbstractA simplified formulation of the semiclassical Heisenberg operator based on the forward‐backward evolution methodology is worked out. A new representation related to the Husimi form is suggested to remove its problem, which may also offer a new way to improve the Herman‐Kluk semiclassical propagator.
Magnetic Exchange Interaction in [BNITPhOPr] and [Cu(Cl2CHCO2)2(NITpPy)2(H2O)]: A Density Functional Theory Study
Authors: Ren Jie , Wei Hai‐Yan , Wang Fan , Chen Zhi‐Da , Zhao Qi‐Hua 
Published: May 2015

AbstractThe magnetic exchange interaction and electronic structures for the nitronyl nitroxide free radical (1), (4,4,5,5‐tetramethyl‐4,5‐dihydro‐1H‐imidazolyl‐1‐oxyl 3‐oxide), nitronyl nitroxide biradical, [BNITPhOPr] (2), (1,3‐[di‐2‐(4,4,5,5‐tetramethyl‐4,5‐dihydro‐1H‐imidazolyl‐1‐oxyl 3‐oxide)phenoxy]propane) and CuII‐nitronyl nitroxide radical complex, [Cu(Cl2CHCO2)2(NITpPy)2(H2O)] (3), (NITpPy=2‐(4‐pyridyl)‐4,4,5,5‐tetramethyl‐2‐imidazoline‐1‐oxy 3‐oxide) were studied by the broken symmetry (BS) approach within the density functional theory (DFT), combined with the spin‐Hamiltonian full‐matrix diagonalization method. The theoretically calculated magnetic coupling constant J values (‐0.10 (2), −12.9 (3)) are approximately consistent with experimental results (‐0.24 (2) and‐11.5 (3)). For the complex 3, the magnetic coupling constant j (‐0.85) between two terminal radical ligands is also obtained, which has not been characterized experimentally. In contrast to radical 1, the nitronyl nitroxide radicals in the biradical 2 and complex 3 behave as a more localized spin‐center. However, CuII ion of the complex 3 exhibits a local‐spin delocalization to the surrounding atoms. Spin population analyses suggest that the intramolecular antiferromagnetic coupling for the biradical 2 is governed by the weak spin polarization through the bridging ligand and that the antiferromagnetic coupling interaction between the CuII ion and nitronyl nitroxide radicals in the complex 3 is dominated by both the local‐spin delocalization on the CuII ion and the global spin polarization mechanism.
Trapping of Tricarbonyl(η1,η2‐homoallyl)iron and Tricarbonyl(η3‐allyl)iron Anion Intermediates with 2‐(Phenylsulfonyl)‐3‐phenyloxaziridine
Authors: Yeh Ming‐Chang P. , Ho Jin‐Xuan , Hsueh Peng‐Yu 
Published: May 2015

AbstractThe addition of reactive carbanions to (η4‐1,3‐diene)Fe(CO)3 complexes at −78 °C and 25 °C produced putative homoallyl and allyl anion complexes, respectively. Reaction of the reactive intermediates with 2‐(phenylsulfonyl)‐3‐phenyloxaziridine afforded nucleophilic substituted (η4‐1,3‐diene)Fe(CO)3 complexes.
Studies with Heterocyclic β‐Enaminoniriles: A Simple Route for the Synthesis of Polyfunctionally Substituted Thiophene, Imidazo[1,2:1′,6′]pyrimido[5,4‐b]thiophene and Thieno[3,2‐d]pyrimidine Derivatives
Authors: Raslan M. A. , Sayed S. M. 
Published: May 2015

AbstractReaction of 3,5‐diaminothiophene‐2‐carbonitrile derivatives 3a‐c with ethoxycarbonylmethyl isothiocyanate and/or N‐[bis(methylthio)methylene]glycine ethyl ester led to formation of 7‐substituted‐8‐amino‐5‐thioxo‐6H‐imidazo[1,2:1′,6′]pyrimido[5,4‐b]thiophene‐2(3H)‐one derivatives 6a‐c and 7‐substituted‐8‐amino‐5‐(methylthio)imidazo[1,2:1′,6′]pyrimido[5,4‐b]thiophene‐2(3H)‐one 7a‐c, respectively. Also, the synthetic potential of the β‐enaminonitrile moiety in 3a‐c has been explored; it proved to be a promising candiate for the synthesis of 1,6‐disubstituted‐2,4‐diamino‐7,8‐dihydro‐8‐oxopyrrolo[1,2‐a]thieno[2,3‐e]pyrimidine derivatives 10a‐f and pyrido[2′,3′:6,5]pyrimido[3,4‐a]benzimidazole derivatives 12a,b.
Ene Reaction of Pummerer‐type Reaction Intermediate of (Methylthio)Acetonitrile: Synthesis of Dienenitriles
Authors: Huang Hsin‐Yu , Wang Huey‐Min , Kang Iou‐Jiun , Chen Ling‐Ching 
Published: May 2015

AbstractPummerer‐type reaction intermediate 2 of (methylthio)acetonitrile (1) has been found to react with 1‐alkenes to afford ene adducts 3. Dienenitriles (4) were synthesized from adducts 3.
Intramolecular Sulfenylation Using Sulfides Synthesis of 5H‐Pyrrolo[1,2‐a][3,1]benzothiazines
Authors: Huang Hsin‐Yu , Wang Huey‐Min , Kang Iou‐Jiun , Chen Ling‐Ching 
Published: May 2015

AbstractTreatment of N‐[2‐(methylsulfanylmethyl)aryl]pyrroles (4) with phenyliodine(III) bis(trifluoroacetate) containing trifluoroacetic acid resulted in an interrupted Pummerer‐type reaction to give 5H‐pyrrolo[1,2‐a][3,1]benzothiazines (5) rather than the normal Pummerer‐type products.
Heterocycles Derived from 5‐(2‐Aminothiazol‐4‐yl)‐8‐hydroxyquinoline: Synthesis and Antimicrobial Activity
Authors: Abdel‐Mohsen Shawkat A. 
Published: May 2015

Abstract5‐(2‐Aminothiazol‐4‐yl)‐8‐hydroxyquinoline 2 has been synthesized by treating thiourea with 5‐chloroacetyl‐8‐hydroxyquinoline 1. The amine 2 was treated with aromatic aldehydes to furnish schiff bases 6a‐c which on treatment with phenyl isothiocyanate gave the corresponding thiazolo‐s‐triazines 7a‐c. Reaction of 2 with phenyl isothiocyanate gave the corresponding aminocarbothiamide derivative 8 which on reaction with malonic acid in acetyl chloride afforded thiobarbituric acid derivative 9. Coupling of 9 with diazonium salt gave the phenyl hydrazono derivative 10. However, reaction of 2 with carbon disulphide and methyl iodide afforded dithiocarbamidate 12 which on treatment with ethylenediamine, o‐aminophenol and/or phenylenediamine gave the aminoazolo derivatives 13–15, respectively. Other substituted fused thiazolopyrimidines 16–20 have been also prepared by the reaction of 2 with some selected dicarbonyl reagents. The characterisation of synthesized compounds has been done on the basis of elemental analysis, IR, 1H‐NMR and mass spectral data. All the newly synthesized compounds have been screened for their antimicrobial activities.
Studies on Liquid/liquid Extraction of Copper Ion with Room Temperature Ionic Liquid
Authors: Wei Guor‐Tzo , Chen Jin‐Chu , Yang Zusing 
Published: May 2015

AbstractRoom temperature ionic liquids are regarded as “Green solvents” for their nonvolatile and thermally stable properties. They are employed to replace traditional volatile organic solvents in organic synthesis, solvent extraction, and electrochemistry. In this work, a water immiscible room temperature ionic liquid, 1‐butyl‐3‐methylimidazolium hexafluorophosphate [C4mim][PF6], was used as an alternative solvent for liquid/liquid extraction of copper ions. Metal chelators, including dithizone, 8‐hydroxyquinoline, and 1‐(2‐pyridylazo)‐2‐naphthol, were employed to form neutral metal‐chelate complexes with copper ions so that copper ions were extracted from aqueous solution into [C4mim][PF6]. The parameters that affect the extraction of copper ions with this biphasic system were investigated. The extraction behavior in this novel biphasic system is shown to be consistent with that of traditional solvents. For example, the extraction with this biphasic system is strongly pH dependent. So, the extraction efficiency of coppers ion from an aqueous phase can be manipulated by tailoring the pH value of the extraction system. Hence, the extraction, separation and preconcentraction of copper ions can be accomplished by controlling the pH value of the extraction system. It appears that the use of ionic liquid as an alternate solvent system in liquid/liquid extraction of copper ions is very promising.
Study on the Gas Permeability of Nickel(II) Polyurethane Complexes
Authors: Chao Min‐Shiun 
Published: May 2015

AbstractIonic polyurethanes (PUs) were prepared from hydroxyl‐terminated polybutadiene (HTPB) and 4,4′‐dicyclohexylmethane diisocyanate (H12MDI) by a two‐stage method. The ionic group was introduced by adding 4,8‐diazaundecanediamide (L‐2,3,2) as the chain extender of which the tertiary amines and carbonyl groups were complexed with nickel ions. It was found that the binding of hard segments and the flexibility of soft segments had subtle effects on the gas permeability. The effects of hard segment content and the amount of nickel ion on the gas permeability and morphological properties were investigated. Fourier transform infrared (FTIR) spectroscopy was utilized to identify the segregation between hard and soft segments and structure change, which affect the transport properties. The hydrogen bonding index (HBI), frequency difference, and shift as a measure of the phase segregation and the average strength of the interpolymer hydrogen bonds were utilized to study the intermolecular interaction and transport property of the prepared PUs. The oxygen and nitrogen permeabilities of membranes were determined by using gas permeability analyzer. The results of FTIR, differential scanning calorimetry and thermogravimetric analysis measurements explain the complexation and, hence, the gas permeability.
Fused Triazines Via a Tandem Wittig/Ring Closure Strategy: Synthesis of Pyrazolo[5,1‐c]‐1,2,4‐Triazines and 1,2,4‐Triazolo[5,1‐c]‐1,2,4‐Triazines
Authors: Barsy Magda A. 
Published: May 2015

AbstractA new method for the synthesis of azolo[5,1‐c]‐1,2,4‐triazine ring systems is reported by the sequential formation of triazine ring based on the regioselective formation of the azophosphoranes from hydrazonyl chlorides, followed by the intermolecular Wittig reaction with carboxylic acid chlorides, phenylisocyanate, and carbon disulfide.
The Synthesis of Some New N‐[1‐(2,5‐Dichlorophenyl)‐5‐Methyl‐1,2,3‐Triazol‐4‐yl]‐Carbamic Acid Ester Derivatives
Authors: Dong Heng‐Shan , Jia Wei , Cui Ji‐Dong , Wang Qing‐Lian 
Published: May 2015

AbstractThe synthesis of some new N‐[1‐(2,5‐dichlorophenyl)‐5‐methyl‐1,2,3‐triazol‐4‐yl]‐carbamic acid ester derivatives are reported in this paper. The yielded products 6a‐l were confirmed by Elemental analyses, NMR, MS, and IR spectra.
Liquid Phase Friedel‐Crafts Alkylation over Mixed Metal Oxide Catalyst
Authors: Shinde Manish M. , Sawant Manohar R. 
Published: May 2015

AbstractLiquid phase Friedel‐Crafts alkylation of benzene with benzyl chloride was carried out over various ferrites viz. CuFe2O4, NiFe2O4, CoFe2O4, ZnFe2O4, and MgFe2O4. Among the various ferrites ZnFe2O4 showed the highest activity. These ferrites were prepared by co‐precipitation technique. The effect of variation of catalyst, speed of agitation and reaction temperature has been studied. Benzylation of other substrates such as toluene, anisole and chlorobenzene was also studied. The catalyst ZnFe2O4 was found to be reusable. The acid base properties of the catalyst were studied by cyclohexanol dehydration reaction and the data was correlated with activity.
Cetyltrimethylammonium Bromide as a Regulator in Paper Separation of Pentachlorophenol Herbicide and Methyl Orange Dye
Authors: Wang Wan‐Kung , Liu Chih‐Hsien 
Published: May 2015

AbstractAn experimental investigation is presented for separation of pentachlorophenol (PCP) and methyl orange (MO) from an aqueous solution by use of cetyltrimethylammonium bromide (CTAB) as a regulator in the paper capillary permeation adsorption process (PCPA). The effects of pH, concentration of CTAB, and ionic strength on the separatability of the molecules were studied. The maximum separatability of nearly 100% PCP and MO was obtained in the optimum pH range 5–11 and 7–11, respectively. The ionic strength has an appreciable effect on separatability. The recovery of PCP and MO from paper by elution with acetone: isooctane solvent gradients was also studied. The selective separation of PCP and MO admixed in aqueous solution by a developed solvent elution technique was also reported. It was believed that PCP and MO were separated as their ion pairs with CTA cations by adsorption on the fiber surface.
Structure‐Reactivity Relationships as Probes to Acetylcholinesterase Inhibition Mechanisms by Aryl Carbamates. I. Steady‐State Kinetics
Authors: Lin Gialih , Lai Cheng‐Yue , Liao Wei‐Chung , Liao Pei‐Shin , Chan Chung‐Hwey 
Published: May 2015

AbstractFrom enzyme kinetics, 4‐nitrophenyl‐N‐substituted carbamates 1 are characterized as pseudo‐substrate inhibitors of acetylcholinesterase. However, the activity of the carbamyl enzyme does not recover in the presence of a competitive inhibitor, edrophonium. Therefore, carbamates 1 should be called as the “pseudo‐pseudo‐substrate” inhibitors of the enzyme. Moreover, the ‐logKi, logkc, and logki values are linearly correlated with Taft‐Ingold equation, log (k/ko) = ρ*σ* + δ Es. A three‐step AChE inhibition mechanism by carbamates 1 is proposed. The first step is the pre‐equilibrium protonations of carbamates 1 with ρ* value of −1.4 from pKa‐σ*‐correlation. The second step is the enzyme‐carbamates 1 tetrahedral intermediate formation from nucleophilic attack of the active site Ser200 on the protonated carbamates 1. The ρ* value for the ‐logKi‐σ*‐Es‐correlation indicates that the true ρ* value for the second step is 0.5 [= −0.9 ‐ (‐1.4)]. The δ value of 0.56 for the ‐logKi‐σ*‐Es‐correlation indicates that carbamates 1 with bulky substituents retarded the formation of enzyme‐inhibitor tetrahedral intermediates. The third step (kc step) is the carbamylation step and is the carbamyl enzyme conjugate formation from the enzyme‐carbamates 1 tetrahedral intermediate. The ρ* value of 0.21 for the logkc‐correlation indicates that the transition state for the carbamylation step is more negative charge than the enzyme‐carbamates 1 tetrahedral intermediate. Moreover, the kc step is insensitive to substituent effects since there is a cancellation of electronic demands for bond‐making and bond‐breaking components, like SN2 reactions. The δ value of 0.00 for the logkc‐correlation indicates that the kc step is independent of substituent steric effect. Therefore, the product of this step carbamyl enzyme conjugate is as crowded as the enzyme‐carbamates 1 tetrahedral intermediate and is likely bound to the leaving group, p‐nitrophenol.
Neolignans from the Parasitic Plants. Part 1. Aeginetia Indica
Authors: Ho Jiau‐Ching , Chen Chiu‐Ming , Row Lie‐Ching 
Published: May 2015

AbstractTwo new neolignans, namely balanophonin 4‐O‐β‐d‐glucopyranoside and aegineoside together with four known neolignans have been isolated from the whole plant of Aeginetia indica Linn. (Orobanchaceae). Their structures were established by spectroscopic and chemical methods.
Thermodynamic Studies on Amino Acid Solvation in some Aqueous Alcohols
Authors: Das Pravakar , Chatterjee S. , Basumallick I. 
Published: May 2015

AbstractPresent paper discusses the behaviour of transfer free energy of some amino acids from water to aqueous solution of Ethanol, 2‐PrOH ad t‐BuOH at different compositions. Dissection of transfer free energy into cavity term, interaction term and electrical term reveals that cavity forming free energy of transfer ΔGt0 (Cav.) plays an important role in dictating actual interaction of amino acids in these mixed solvents. Cavity forming free energy of transfer has been estimated by using Scaled Particle Theory (SPT).
Study on Determination of Six Transition Metal Ions in Biological Samples by SPE and RP‐HPLC
Authors: Yang Ya‐Ling , Miao Ming‐Ming , Lin Qiang , Yang Guang‐Yu 
Published: May 2015

AbstractThis paper reports the utilization of solid phase extraction and the reversed‐phase high‐performance liquid chromatography (RP‐HPLC) for the determination of six transition metal ions (iron, cobalt, nickel, copper, zinc and manganese) in biological samples. The samples were digested by microwave digestion. The iron, cobalt, nickel, copper, zinc and manganese ions in the digested samples can react with 2‐(2‐quinolinylazo)‐5‐diethylaminophenol (QADEAP) to form colored chelates in pH 4.0 acetic acid‐sodium acetic buffer solutions and cetyl trimethylammonium bromide (CTMAB) medium. These chelates were enriched by solid phase extraction with C18 cartridge. Then the chelates were separated on a Waters Nova‐Pak‐C18 column (3.9 × 150 mm, 5 μm) by gradient elution with methanol (containing 0.5% of acetic acid and 0.1% of CTMAB) and 0.05 mol/L pH 4.0 acetic acid‐sodium acetic buffer solution (containing 0.1% of CTMAB) as mobile phase at a flow rate of 0.5 mL/min. The detection limits of iron, cobalt, nickel, copper, zinc and manganese are 3 ng/L, 4 ng/L, 2 ng/L, 4 ng/L, 8 ng/L, 10 ng/L, respectively. This method was applied to the determination of iron, cobalt, nickel, copper, zinc and manganese in biological samples with good results.
Novel Hydrogen‐bond Three Dimensional Networks Generated from the Reaction of Metal Nitrate Hydrate (M = Co, Ni) with Ammonium Thiocynate and Bidentate Ligand Piperazine
Authors: Suen Maw‐Cherng , Wang Yuen‐Hua , Wang Ju‐Chun 
Published: May 2015

AbstractThe reaction of Co(NO3)2·6H2O with two equivalents of PPz (PPz = piperazine hexahydrate) and two equivalents of NH4SCN in CH3OH afforded the complex [Co(NCS)2(PPz)2(CH3OH)2]. The reaction of Ni(NO3)2·6H2O with two equivalents of PPz and four equivalents of NH4SCN in CH3OH afforded the complex [Ni(NCS)4(PPz)2]. Their IR spectra have been recorded and the structures have been determined. Crystal data for 1: space group P&1bar;, a = 6.7208(6) Å, b = 8.4310(8) Å, c = 8.5923(8) Å, a = 77.881(2)°, β = 76.342(2)°, γ = 83.936(2)°, V = 461.75(1) Å3, Z = 1 with final residuals R1 = 0.0650 and wR2 = 0.1725. Crystal data for 2: space group P2(1)/n, a = 7.4209(6) Å, b = 11.0231(9) Å, c = 12.317(1) Å, β = 96.642(9)°, V = 1000.9(2) Å3, Z = 2 with final residuals R1 = 0.0378 and wR2 = 0.0809. Important NCS—H‐N and O‐H—N(PPz) hydrogen‐bonding interactions in compound 1 and NCS···H‐N hydrogen‐bonding interactions and NCS—SCN interactions in compound 2 play a significant role in aligning the polymer strands in crystalline solids.
Direct Electrochemistry with Nitrate Reductase in Chitosan Films
Authors: Song Yaru , Chen Xiaoxia , Wu Hong , Shao Huibo 
Published: May 2015

AbstractStable films made from chitosan (CS) on pyrolytic graphite (PG) electrode gave direct electrochemistry for incorporated enzyme nitrate reductase (NR). Cyclic voltammetry (CV) of NR‐CS films showed a pair of well‐defined and nearly reversible redox peaks at about −0.430 V vs. SCE at pH 7.0 phosphate buffers, which was considered as the redox of FAD and heme‐ion. The electron transfer between NR and PG electrode was greatly facilitated in CS films. Integration of reduction peaks at different scan rates from 0.01 to 0.5 V s−;1 gave nearly constant charge values, which is characteristic of thin‐larger‐electrochemical behavior. The pH of the solution strongly affected the direct electron transfer of NR‐CS films. EDTA accelerated the electron transfer, and it was proposed as a stimulant for the system. Reflectance absorption infrared spectra demonstrated that NR retained a nearly native conformation in CS films.
Synthesis and Nucleophilic Addition Reactions of Tricarbonyl[η5‐2‐(phenylthio)hexadienyl]iron Hexafluorophosphate
Authors: Chou Shang‐Shing P. , Chen Ting‐Wan 
Published: May 2015

Abstract3‐Phenylthio‐3‐sulfolene (1) was readily converted to a C‐5 substituted product 2, which upon thermolysis and complexation with Fe2(CO)9 gave (η4‐diene)iron complexes 3a and 3b. Treatment of 3a and 3b with aq. HPF6 and Ac2O provided the title compound 5, which reacted regio‐ and stereospecifically with some nucleophiles to give the addition products 3b and 7.
Synthesis and Characterization of Poly(Methyl Methacrylate) Grafted from Acacia Gum
Authors: Chowdhury P. , Samui S. , Kundu T. , Saha B. 
Published: May 2015

AbstractGraft polymerization of methyl methacrylate onto acacia gum has been studied in detail. The grafting was found to be optimal under the following reaction conditions: gum at 0.4 g/dL, monomer at 7.52 × 10−;2 mol/dL, ceric ammonium sulfate at 15.81 × 10−;4 mol/dL, H2SO4 at 0.037 mol/dL, temperature at 50 °C and time at 3.0 h. Fourier transform infrared spectroscopy was sed for the confirmation of grafting. Thermal and physical properties of the copolymer were studied. A probable mechanism of polymerization has been suggested based on reaction kinetics.