A. Barghash

Mansoura University

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Interpretation of Loss in Strength and Breaking Elongation of Resin-Treated Cotton Fibers Using Microscopical Technique

Journal of Engineering for Industry (1983)

A. Barghash Abdel‐Fattah M. Seyam

Interpretation of reduction in strength and breaking elongation of resin-treated cotton fibers using a simple light microscope and swelling agent has been shown. The effect of the three factors, namely, resin pickup, setting temperature, and setting time, has been studied. Shape and location of damage for different treatment conditions have been used to deduce the reasons of reduction in both properties. Treatment stages have been broken down to deduce the contribution of each treatment stage to the reduction in strength and breaking elongation. The results obtained showed that the loss in strength and breaking extension of resin-treated cotton fibers is due to the presence of crosslinks and chemical degradation. This is in full agreement with earlier postulation.

Elongation

Breaking strength

10.1115/1.3185857

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Citations (1)

ChemInform Abstract: CYCLISIERUNG VON 1‐BENZOYL‐2‐(3,4‐DIMETHOXY)‐BENZYLIDEN‐HYDRAZON ZU 1‐PHENYL‐6,7‐DIMETHOXYPHTHALAZIN BEI DER HYDROLYSE MIT NATRONLAUGE

Chemischer Informationsdienst (1973)

A. Barghash Ahmed Omar A. M. FARGHALY M. S. Ragab

Abstract Die Hydrazone (II) cyclisieren in siedender l0%iger Natronlauge in 58‐60%ig t Ausbeute zum Phthalazin (III).

10.1002/chin.197318328

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Identification of Fibers in Textiles.(Dept.T)

مجلة کلية دار العلوم (2021)

A. Barghash A. Hebeish Adel El-hadidy

Identification of textile fibers could be assessed by making use of light microscopy. In essence, a solution was prepared consisting of Zncl2, (100 g), KI (32 g), distilled water (34 ml), and I, (till saturation). This solution was used as a swelling agent for tactile fibers during microscopic examination. Differences in longitudinal and cross-sectional views have been taken to identify fibers in textiles.

Distilled water

Textile

10.21608/bfemu.2021.181768

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The cyclodesulphurization of thio-compounds. Part 12: A new simple method for the synthesis of N-alpha-substituted benzimidazoles from thiourea derivatives.

PubMed (1976)

AbdulMohsen Omar M. S. Ragab A. M. FARGHALY A. Barghash

A new facile method has been established for the synthesis of N-alpha-substituted benzimidazoles by cyclodesulphurization of various N-[2-amino]-phenyl-N'-alkyl, -aryl and -aralkylthiourea derivatives with mercuric salts. Besides mercuric chloride, the use of mercuric oxide and mercuric acetate was successful for the first time in effecting ring closure of thio-compounds. The attempted use of acid condensing agents showed phosphoryl chloride to be less efficient than mercuric salts in conducting the cyclization reactions and led to poor yields of cyclized products.

Thio-

Source

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Studies on Blending of Cotton with Polyester Part I. Improving The Properties of Cotton Component Via Chemical Modification. (Dept.T)

مجلة کلية دار العلوم (2021)

A. Barghash A. Hebeish B. Farah Ismail El-Metwally Rakha

Component (thermodynamics)

Chemical modification

DEPT

10.21608/bfemu.2021.181763

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ChemInform Abstract: Bichalcophenes: A Concise Synthesis of Formyl Ester‐ and Cyano Ester‐Substituted Bithiophenes, Bifurans and Furanothiophenes

ChemInform (2010)

Abdelbasset A. Farahat Arvind Kumar A. Barghash Fatma E. Goda Hassan M. Eisa

Abstract ChemInform 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.

10.1002/chin.201024093

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ChemInform Abstract: THIADIAZOLE FORMATION RATHER THAN CYCLODESULPHURIZATION OF N‐(3,4‐DIMETHOXY‐BENZYLIDEN)‐N′‐THIOBENZOYL HYDRAZINE INTO PHTHALAZINE DERIVATIVES WITH MERCURIC CHLORIDE

Chemischer Informationsdienst (1973)

A. Barghash A.‐M. M. E. OMAR A. M. FARGHALY M. S. Ragab

Phthalazine

Hydrazine (antidepressant)

10.1002/chin.197337257

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Studies on Blending of Cotton with Polyester Part II. Utilization of Chemcally Treated Cotton in Blending with Polyester for Better Properties.(Dept.T)

مجلة کلية دار العلوم (2021)

A. Barghash A. Hebeish B. Farah Ehab Rakha

lllaterialsl 2.1.1.Raw Ootton (Ro).Egyptian cotton :fibres (Giza 10) were selected for this study due to their long length and high :fineness which would probably outweigh the shortening of fibre length and coarseness of fibre brought about by the chemical treetement.2.1.2.Alkali treated cotton (AO) ,Alkali treated cotton (AC) was prepared by slack mercerization of the cotton fibres a8 described elsewhere/l/.2.1.3.Partially csrboxymethylated cotton with low degree of substitution (1C).2.1.4.Partially carboxymethylBted cotton with mediwn degree of subetitution (Me).• 2.1.5.Partially carboxymethylated cotton Vlith high degree of substitution (He).These partially carboxymethylated cottons were prepared according to conditions described in details Ul a previous communication Ill.2.1.6.Folyester staple fibres (P) having 1.5 denier, 1~5 inch (3B mm) were used throuehout this investigstion.Each of ths above cotton substrates was blended with the polyester to produce three yarns as per tile blend ratios given below: Cotton100% 10% 50% Polyester 50%Regardless of the substrate or the blend ratios used, the fibers were processed so as to yield yarns having the same count and twist multiplier (Ne .50 and ~ = ).6).

Breaking strength

Degradation

10.21608/bfemu.2021.182298

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Bichalcophenes: A concise synthesis of formyl ester- and cyano ester-substituted bithiophenes, bifurans, and furanothiophenes

Journal of Heterocyclic Chemistry (2010)

Abdelbasset A. Farahat Arvind Kumar A. Barghash Fatma E. Goda Hassan M. Eisa

Abstract magnified image Syntheses of new formyl ester‐ and cyano ester‐substituted bithiophenes, bifurans, and furanothiophenes in good yield are described. The key synthetic step uses Stille coupling of appropriately substituted bromo 5‐ring heterocycles with stannyl‐substituted 5‐ring heterocycles. J. Heterocyclic Chem., (2010).

Stille reaction

10.1002/jhet.295

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Synthesis of new heterocyclic compounds containing benzimidazole moiety as inhibitors of breast cancer cell growth

Heterocyclic Communications (2013)

Atif Tantawy A. Barghash Sahar Badr Rania M. Gomaa

Abstract A series of new benzimidazole derivatives, namely 2-acylbenzimidazoles 2–9 , a dihydroquinoxaline 10 , a benzoxazine 11 , quinolines 13–15 and fused 1,2,4-triazines 17–24 were synthesized. Structure elucidation of the compounds was conducted using IR, 1 H NMR, 13 C NMR, mass spectral data and elemental analysis. These products were evaluated for in vitro antitumor activity against MCF7 cell line (human breast cancer). Compounds 13–15 and 24 manifested significant antitumor activity.

Benzimidazole

Moiety

Cancer cell lines

Proton NMR

10.1515/hc-2013-0013

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Citations (7)