One-pot synthesis of novel ladder type condensation polymers via condensation reactions of dihydroxyaromatic compounds and 2,5-dimethoxytetrahydrofuran

Rahmatpour, Ali

doi:10.1016/j.reactfunctpolym.2010.09.003

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…Polyesters containing heterocyclic and bulky units in the main chain possess excellent thermal stabilities. In our previous work, we demonstrated that dinaphthodioxocin units containing polymers exhibited moderately high‐ T g ,s and enhanced thermal stability and solubility 12. The work presented here was designed to obtain the synthesis of a new diol monomer‐containing dinaphthodioxocin heterocyclic group and its polycondensation with a set of aliphatic diacid chlorides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Rahmatpour¹

2011

J of Applied Polymer Sci

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A novel dinaphthodioxocin-containing diol monomer, 8,16-methano-16H-dinaphtho[2,1-d:1 0 ,2 0 -g][1,3] dioxocin-2,14-diol (MDDD) was synthesized in high yield and purity through the condensation of 2,7-dihydroxynaphthalene with malonaldehydetetramethyl acetal at room temperature. It is used as a new monomer for the synthesis of a series of novel dinaphthodioxocin-containing aliphatic polyesters by interfacial polycondensation method. The new diol monomer was fully characterized by IR, NMR, mass spectroscopies, and elemental analysis. Optimal conditions for polyesterification were obtained via study of the model compounds. Polyesters derived from MDDD and four aliphatic diacid chlorides had inherent viscosities ranging from 0.26 to 0.38 dL/g. The chemical structure of the polymers was fully characterized by IR, NMR spectroscopies, and elemental analysis. The physical properties of the polymers were studied. All the new polymers show good thermal stability and very good solubility in most organic solvents.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Rahmatpour¹

2011

J of Applied Polymer Sci

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“…In earlier work, it was demonstrated that dinaphthodioxocin units containing polymers exhibited moderately high T g values and enhanced thermal stability and solubility. 13 The work presented here was designed to obtain the synthesis of a diol monomer-containing dihydronaphthofuro heterocyclic group and its polycondensation with a set of aliphatic diacid chlorides. Synthesis of the dimeric products containing dihydrobenzofuro [2,3-b]benzofuran and related products and also dihydronaphtho furo [3,2-d]furan derivatives nuclei has been reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of new aliphatic polyesters containing dihydronaphthofuro[3,2-d]furan moiety

Rahmatpour

2011

High Performance Polymers

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A dihydronaphthofuro[3,2-d]furan containing diol monomer, viz., 2,13-dihydroxy[7a,14c] dihydro naphtho[2,1-b] naphtho[1 0 ,2 0 :4,5]furo[3,2-d] furan (DDNF) was synthesized in high yield and purity through the condensation of commercially available 2,7-dihydroxynaphthalene with glyoxal at room temperature. It was used as a new monomer for the synthesis of a series of novel dihydronaphthofuro-containing aliphatic polyesters by interfacial polycondensation method. Optimal conditions for polyesterification were obtained via study of the model compounds. The diol monomer and model compound were fully characterized by infrared, nuclear magnetic resonance (NMR), mass spectroscopies, and elemental analysis. Polyesters derived from DDNF and four aliphatic diacid chlorides had inherent viscosities ranging from 0.36 to 0.51 dL g À1 . The chemical structure of the polymers was characterized by Fourier transform infrared, NMR spectroscopies and elemental analysis. The physical properties of the polymers were studied. The glass transition temperature was in the range of 89-118 C. All the new polymers showed good thermal stability and very good solubility in most organic solvents.

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ZrOCl₂·8H₂O as a highly efficient, eco‐friendly and recyclable Lewis acid catalyst for one‐pot synthesis of N‐substituted pyrroles under solvent‐free conditions at room temperature

Rahmatpour¹

2011

Applied Organom Chemis

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A new and efficient method for the synthesis of a variety of N-substituted pyrroles from condensation reactions of 2,5-hexanedione with amines or diamines using ZrOCl 2 ·8H 2 O as a water-tolerant Lewis acid catalyst at room temperature is described.The use of nontoxic, inexpensive, easily available and reusable catalyst under solvent-free conditions make this protocol practical, environmentally friendly and economically attractive.

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One-pot synthesis of novel ladder type condensation polymers via condensation reactions of dihydroxyaromatic compounds and 2,5-dimethoxytetrahydrofuran

Cited by 7 publications

References 32 publications

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Synthesis and characterization of new aliphatic polyesters containing dihydronaphthofuro[3,2-d]furan moiety

ZrOCl₂·8H₂O as a highly efficient, eco‐friendly and recyclable Lewis acid catalyst for one‐pot synthesis of N‐substituted pyrroles under solvent‐free conditions at room temperature

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One-pot synthesis of novel ladder type condensation polymers via condensation reactions of dihydroxyaromatic compounds and 2,5-dimethoxytetrahydrofuran

Cited by 7 publications

References 32 publications

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Synthesis and characterization of new aliphatic polyesters containing methanodinaphtho[1,3]dioxocin part

Synthesis and characterization of new aliphatic polyesters containing dihydronaphthofuro[3,2-d]furan moiety

ZrOCl2·8H2O as a highly efficient, eco‐friendly and recyclable Lewis acid catalyst for one‐pot synthesis of N‐substituted pyrroles under solvent‐free conditions at room temperature

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Product

Resources

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ZrOCl₂·8H₂O as a highly efficient, eco‐friendly and recyclable Lewis acid catalyst for one‐pot synthesis of N‐substituted pyrroles under solvent‐free conditions at room temperature