Synthesis, characterization and electrical conductivity of new poly (azomethine ester)s from hydroxy acids

Ravikumar, L.; Prasad, Mahanth; Vasanthi, B. Joy; Gopalakrishnan, K.; Rajeshkumar, J.; Sengodan, Vetrivel Chezian

doi:10.1016/j.matchemphys.2009.01.030

Cited by 20 publications

(10 citation statements)

References 23 publications

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“…Thermooxadative stability of the polymers depends on the nature of substituent's present in the N-benzylidene ring. Since poly(azomethine ester)s show good conductivity [32], the conductivity study of the synthesized polyamides is in progress.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of New Polyamides with Substitutions in the Pendent Benzylidene Rings

Ravikumar¹,

Saravanan

Saravanamani

et al. 2009

Designed Monomers and Polymers

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Aromatic polyamides with azomethine groups present in the polymer with -Cl, -OCH 3 , -N(CH 3 ) 2 and -OH substitutions in the pendent benzylidene rings were synthesized through polycondensation of new aromatic dicarboxylic acids with aromatic diamines using the phosphorylation technique in DMF. Direct polymerization of the monomers benzylidenamino phenyl 2,5-dicarboxylic acid (M1), 4 -hydroxy benzylidenamino phenyl 2,5-dicarboxylic acid (M2), 4 -methoxy benzylidenamino phenyl 2,5-dicarboxylic acid (M3), 4 -chloro benzylidenamino phenyl 2,5-dicarboxylic acid (M4) and (N,N-dimethylamino) benzylidenamino phenyl 2,5-dicarboxylic acid (M5) was carried out with commercial diamines, 4,4 -methylenedianilene and 4,4-diaminobiphenyl, at 140 • C. FT-IR and 1 H-NMR spectroscopic analysis were used to characterize the monomers and polymers. The inherent viscosity values of polyamides are in the range 0.39-0.68. Due to the substitutions in the pendent benzylidene rings, the polymers show enhanced solubility. The thermal stability of the polyamides was evaluated using thermogravimetric analysis, and the thermogravimetric curves show the dependence of thermal stability on the nature of the substitutions in the benzylidene rings.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of New Polyamides with Substitutions in the Pendent Benzylidene Rings

Ravikumar¹,

Saravanan

Saravanamani

et al. 2009

Designed Monomers and Polymers

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“…Полимеры на основе азометинов имеют много полезных свойств, таких как термическая стабильность [30][31][32], жидкокристаллические свойства [33][34][35][36], способность к волокнообразованию, нелинейно-оптические [37,38] и люминесцентные свойства [39,40], электропроводимость [41][42][43] и способность к хелатообразованию [44,45]. Полиимины, синтезированные из ароматических аминов и альдегидов, могут быть использованы в качестве полупроводников [46][47][48][49].…”

Section: Nm 330 Nm 440 Nmunclassified

,Polyazomethines. Synthesis, properties and applications (review)

Ovdenko¹,

Syromyatnikov²,

Kolendo³

2017

polymmattech

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“…Aromatic polymers containing both ester and azomethine units are a type of high-performance polymers with excellent thermal, physical and mechanical properties and are utilized in various fields such as electric, electronic, photonics and in industrial material field [1][2][3][4][5][6]. It has been reported that the ester group increases the electrical conductivity of copolymers in poly(azomethine-ester) via two manners i.e.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Poly(azomethine ester)s with a Pendent Dimethoxy Benzylidene Group

Vasanthi¹,

Ravikumar²

2013

OJPChem

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Recently, soluble poly(azomethine ester)s with good thermal stability and liquid crystalline properties are much sought after in opto-electronic field. One such attempt was to synthesize poly(azomethine ester)s with a pendent group. In this study, the newly synthesized diacid monomer benzalaniline 3'-4'dimethoxy terepthalic acid was condensed with two diol monomers to get the polymers with pendent benzylidene group. The diacid monomer was characterized by UV, IR, NMR and CHNS analysis. The polymers were characterized by IR, TGA, and for liquid crystalline property. Polymer-I showed the highest thermal stability upto 335˚C. Polymer-II exhibited liquid crystalline nature along with good solubility and thermal stability.

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Synthesis, characterization and electrical conductivity of new poly (azomethine ester)s from hydroxy acids

Cited by 20 publications

References 23 publications

Synthesis and Characterization of New Polyamides with Substitutions in the Pendent Benzylidene Rings

Synthesis and Characterization of New Polyamides with Substitutions in the Pendent Benzylidene Rings

,Polyazomethines. Synthesis, properties and applications (review)

Synthesis and Characterization of Poly(azomethine ester)s with a Pendent Dimethoxy Benzylidene Group

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