Arylidene polymers. XVIII. Synthesis and thermal behavior of organometallic arylidene polyesters containing ferrocene derivatives in the main chain

Abdalla, Mohamed M.; El‐Zohry, Maher F.; Aly, Kamal I.; Abdelwahab, Mohamed

doi:10.1002/app.1993.070470211

Cited by 40 publications

(23 citation statements)

References 10 publications

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“…Abd-Alla et al [34] synthesized a new interesting category of organometallic polyesters 5a-e based on dibenzylidene-cycloalkanones containing ferrocene derivatives in the main chain by interfacial polycondensation of 1,1 -dichlorocarbonyl ferrocene or 1,1 -dichlorocarbonyl-4,4 -diiodoferrocene with 2,5-bis(4-hydroxybenzylidene)cyclopentanone, 2,5-bis(4-hydroxy-3-methoxybenzylidene)cyclopentanone, 2,6-bis(4-hydroxybenzylidene)cyclohexanone, 2,6-bis(4-hydroxy-3-methoxybenzylidene)cyclohexanone and 2,7-bis(4-hydroxybenzylidene)cycloheptanone at ambient temperature (Fig. 3).…”

Section: Ferrocene Polymersmentioning

confidence: 99%

Organometallic Ferrocene- and Phosphorus-Containing Polymers: Synthesis and Characterization

Hussein

Asiri

2012

Designed Monomers and Polymers

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The inclusion of organometallic units into polymeric structures has attracted much attention in different fields according to the nature and behaviour of the inserted metal. Moreover, the discovery of organometallic polymers and their structural characterization initiated an explosive rebirth of organometallic chemistry. Organometallic moieties are in or pendent to the polymer backbone and examine some of the uses of the emergent metallocene polymers, and new uses are still being found for these remarkable organometallic moieties. This review gives a simple introduction to variable organometallic molecules and their characteristics. This review will focus on the syntheses and characterization of organometallic polymers, including ferrocene-and phosphorus-containing polymers. A general overview on ferrocene polymers with a special attention to ferrocene-containing liquid crystalline polymers (including a ferrocene moiety in the main chain, side-chain or dendrimers) and fullerene-ferrocene liquid crystalline polymers is presented. In addition, more details for synthesis and properties of phosphorus-containing polymers are illustrated.

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Section: Ferrocene Polymersmentioning

confidence: 99%

Organometallic Ferrocene- and Phosphorus-Containing Polymers: Synthesis and Characterization

Hussein

Asiri

2012

Designed Monomers and Polymers

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“…Moreover, it should be noted that the presence of methoxyl groups as substituent in the phenyl ring caused some hindering between the repeating units and inforced its to the unsymmetrical orienation in the polymer chains and reduced the close packed structure and hence these copolyesters exhibit only a low degree of crystallinity [30]. Moreover, in copolyesters (IVe, Ve, Vie) the presence of -N=N-as a polar group in addition to -C=C-bonds induces some order between two adjacent chains in the polymer towards some extent of crystallinity [36][37] …”

Section: X-ray Analysismentioning

confidence: 99%

Fabrication and Characterization of Unsaturated Copolyesters Based on Diarylidenecyclohexanone

Abdelaty¹

2017

AJPST

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New series of unsaturated copolyesters based on diarylidenecyclohexanone, were synthesized by the interfacial polycondensation polymerization technique. Aldol condensation reaction in acid media was used for preparation of three kinds of monomers and investigated by FT IR and 1 H NMR. The copolymers have been synthetized by the polymerization of 2, 6-bis (4-hydrxybenzylidene) cyclohexanone I, 2, 6-bis (3-hydroxybezylidene) cyclohexanone II, or 2, 6-bis (4-hydroxy-3-methoxybenzylidene) cyclohexanone III with isophthaloyl, terphthaloyl, adipoyl, sebacoyl and azobenzene 4, 4-dicaroxyldichloride. The resulting copolyesters were characterized by FT-IR, 1 HNMR. The intrinsic viscosity of these copolyesters was used for the determination of the molecular weight. The thermal stabilities of the prepared copolyesters were evaluated thermogravimeteric analysis (TGA). Differential thermal analysis (DTA) was used for determination of glass temperatures. X-ray analysis showed that polymers have low degree of crystallinity. The morphological properties of some selected copolyesters were detected by SEM. The dielectric and electrical resistance, capacitance, inductance, demonstrating the insulator behaviour of copolymers.

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“…The thermal stabilities of selected examples of copolyesters were evaluated by thermogravimeteric analysis (TGA), Differential thermal analysis (DTA) in air at a heating rate of 10°C min high hindrances to internal rotation about primary valance bonds, and hence raises T g [32].…”

Section: Thermal Analysismentioning

confidence: 99%

Fabrication and Characterization of New Unsaturated Terpolyesters Based on Diarylidenecyclohexanone

Abdelaty¹

2017

Polym Sci

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In the present study new unsaturated terpolyesters based on diarylidenecyclohexanone, were synthesized by the interfacial polycondensation polymerization technique. Aldol condensation reaction in acid media was used for preparation of three kinds of monomers and investigated by FT IR and 1 H NMR as discussed in our resent work. The terpolymers were synthetized by the polymerization of 2,6-bis (4-hydrxybenzylidene) cyclohexanone I, 2,6-bis (3-hydroxybezylidene) cyclohexanone II, and 2,6-bis (4-hydroxy-3-methoxybenzylidene) cyclohexanone III with isophthaloyl, terphthaloyl, adipoyl, sebacoyl and azobenzene 4,4-dicaroxyldichloride. The resulting terpolyesters were characterized by FT-IR, 1 HNMR. The molecular weight was determined by the intrinsic viscosity measurements. The thermal stabilities of the prepared Terpolyester were evaluated thermogravimeteric analysis (TGA). Differential thermal analysis (DTA) was used for determination of glass temperatures. X-ray analysis shows the degree of crystallinity. The morphological properties of some selected polymers were detected by SEM.

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Arylidene polymers. XVIII. Synthesis and thermal behavior of organometallic arylidene polyesters containing ferrocene derivatives in the main chain

Cited by 40 publications

References 10 publications

Organometallic Ferrocene- and Phosphorus-Containing Polymers: Synthesis and Characterization

Organometallic Ferrocene- and Phosphorus-Containing Polymers: Synthesis and Characterization

Fabrication and Characterization of Unsaturated Copolyesters Based on Diarylidenecyclohexanone

Fabrication and Characterization of New Unsaturated Terpolyesters Based on Diarylidenecyclohexanone

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