Search Results - "Saad, G. R."

Mesophase behaviour of laterally di-fluoro-substituted four-ring compounds by Ahmed, H.A., Saad, G.R.

“…Four new groups of the di-fluoro-substituted 4-(2′-(or 3′)-fluoro phenylazo)-2-(or 3-) fluoro phenyl-4″-alkoxyphenylazo benzoates (In-IVn) were prepared and…”
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Mesophase stability of new Schiff base ester liquid crystals with different polar substituents by Hagar, M., Ahmed, H. A., Saad, G. R.

“…Four new groups of Schiff base ester liquid crystal compounds, 4-((4'-substituted phenylimino) methyl)phenyl-4''-alkoxybenzoates, Ina-d, were prepared and…”
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Poly(n-Alkyl Itaconate-Co-Vinyl Acetate) as Pour Point Depressants for Lube Oil in Relation to Rheological Flow Properties by Al-Sabagh, A. M., Khalil, T. M., Sabaa, M. W., Khidr, T. T., Saad, G. R.

“…In the present work, poly(n-alkyl itaconate-co-vinyl acetate) comb-like polymers were synthesized by radical copolymerization of n-alkyl itaconates of various…”
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Blends of bacterial poly[(R)-3-hydroxybutyrate] with oligo[(R,S)-3-hydroxybutyrate]-diol by Saad, G R

“…The miscibility, melting and crystallization behaviour of poly[(R)‐3‐hydroxybutyrate], PHB, and oligo[(R,S)‐3‐hydroxybutyrate]‐diol, oligo‐HB, blends have been…”
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Impact of the proportionation of dialkoxy chain length on the mesophase behaviour of Schiff base/ester liquid crystals; experimental and theoretical study by Ahmed, H. A., Hagar, M., Saad, G.R.

“…New non-symmetrical homologues series of Schiff base/ester series, 4-alkoxyphenylimino-4ʹ-phenyl-4ʹ'-alkoxybenzoates, have two terminal alkoxy groups (Im/n),…”
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Annealing of poly(trimethylene terephthalate)/polycarbonate blends by El.Shafee, E, Zaki, M, Saad, G. R

“…A blend of poly(trimethylene terephthalate) (PTT) and polycarbonate with a weight ratio of 50/50 was studied by means of differential scanning calorimetry…”
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Mesophase behaviour of 1:1 mixtures of 4-n-alkoxyphenylazo benzoic acids bearing terminal alkoxy groups of different chain lengths by Ahmed, H.A., Naoum, M.M., Saad, G.R.

“…The thermal and mesophase behaviour of all possible 1:1 mixtures (In/Im) formed from any two homologues of 4-n-alkoxyphenylazo benzoic acids bearing different…”
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Surface modification of polypropylene film by grafting with vinyl monomers for the attachment of chitosan by Abudonia, K. S., Saad, G. R., Naguib, H. F., Eweis, M., Zahran, D., Elsabee, M. Z.

“…Polypropylene (PP) film activated by corona discharge treatment was grafted with methyl methacrylate (MMA) and acrylic acid (AA). The grafted PP was…”
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Effect of alkoxy-chain length proportionation on the mesophase behaviour of terminally di-substituted phenylazo phenyl benzoates by Ahmed, H. A., Naoum, M. M., Saad, G. R.

“…A series of 4-alkoxyphenylazo-4′-phenyl-4′′-alkoxybenzoates bearing two terminal alkoxy groups (I m + n), where m and n denote the number of carbon atoms in…”
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Copolymerization of bromophenylmaleimide with ethyl or butyl methacrylate by Naguib, HF, Saad, GR, Elsabeé, MZ

“…N‐p‐Bromophenylmaleimide (BrPMI) does not polymerize in solution by conventional free radical mechanism. However, it readily polymerized in bulk when mixed…”
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Synthesis, morphology and thermal properties of polyurethanes nanocomposites based on poly(3-hydroxybutyrate) and organoclay by Naguib, H.F., Aziz, M.S. Abdel, Saad, G.R.

“…Segmented poly(ester-ether urethane)s/organoclay nanocomposites based on bacterial poly(3-hydroxybutyrate) (PHB) and poly(ɛ-caprolactone)-b-poly(ethylene…”
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Management of advanced ARDS complicated by bilateral pneumothoraces with high-frequency oscillatory ventilation in an adult by Galvin, I., Krishnamoorthy, R., Saad, R.S.G.

“…We report the case of a 33-yr-old patient with adult respiratory distress syndrome (ARDS) complicated by bilateral pneumothoraces, who was successfully treated…”
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Miscibility and the specific interaction of polyhydroxybutyrate blended with polyvinylacetate and poly(vinyl acetate-co-vinyl alcohol) with some biological applications by Abou-Aiad, T. H., El-Sabee, M. Z., Abd-El-Nour, K. N., Saad, G. R., El-Sayed, El-Sayed A., Gaafar, E. A.

“…Bacterially produced polyhydroxybutyrate (PHB) polymer has a lot of potential as an application for environmentally degradable plastics. We aimed in this study…”
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Calorimetric and dielectric study on poly(trimethylene terephthalate)/polycarbonate blends by El Shafee, E., Saad, G. R., Zaki, M.

“…Poly(trimethylene terephthalate) (PTT)/polycarbonate (PC) blends with different compositions were prepared by melt blending. The miscibility and phase behavior…”
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Synthesis and mesophase behaviour of Schiff base/ester 4-(arylideneamino)phenyl-4″-alkoxy benzoates and their binary mixtures by Hagar, M., Ahmed, H.A., Saad, G.R.

“…Four new groups of Schiff base ester liquid crystal compounds, 4-(arylideneamino)phenyl-4″-alkoxy benzoates, Ina–d, were prepared and investigated for their…”
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Synthesis and characterization of biodegradable poly(ester-urethanes) based on bacterial poly(R-3-hydroxybutyrate) by Saad, Gamal R., Lee, Y. J., Seliger, H.

“…A series of poly(R‐3‐hydroxybutyrate)/poly(ε‐caprolactone)/1,6‐hexamethylene diisocyanate‐segmented poly(ester‐urethanes), having different compositions and…”
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New calamitic thermotropic liquid crystals of 2-hydroxypyridine ester mesogenic core: mesophase behaviour and DFT calculations by Hagar, M., Ahmed, H.A., Saad, G.R.

“…New three groups of 2-hydroxypyridine ester-based liquid crystals named, 5-[2-(4-substitutedphenyl)diazenyl]pyridin-2-yl 4ʹ-alkoxybenzoate were synthesised…”
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Effect of molecular structure on the phase behaviour of some liquid crystalline compounds and their binary mixtures VI[1]. The effect of molecular length by SAAD, GAMAL R., NESSIM, REFAAT I.

“…The apparent solution dipole moments of compounds based on 4,4-di-substituted phenyl benzoate (ROC6H4COOC6H4X), I, where X is a cyano group and R a terminal…”
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Dielectric investigation of cold crystallization of poly(3-hydroxybutyrate) by Saad, Gamal R., Mansour, Ashraf A., Hamed, Amany H.

“…The dielectric behaviour of poly(3-hydroxybutyrate) (PHB) has been investigated for the glass (α) relaxation in the temperature and frequency ranges of −60 to…”
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II. Dielectric investigation of cold crystallization of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by MANSOUR, A. A, SAAD, G. R, HAMED, A. H

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