Microwave-assisted rapid synthesis of novel optically active poly(amide-imide)s containing hydantoins and thiohydantoins in main chain

Faghihi, Khalil; Zamani, Khosrow; Mirsamie, Azizollah; Sangi, Mohammad Reza

doi:10.1016/s0014-3057(02)00200-8

Cited by 47 publications

(26 citation statements)

References 17 publications

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“…[43] Analogously, the polymerizations were carried out in solution in o-cresol in a domestic microwave oven to produce polymers within irradiation times of 10 min. Viscosity measurements, however, were not performed.…”

Section: Poly(amide Imide)smentioning

confidence: 99%

Microwave‐Assisted Polymer Synthesis: State‐of‐the‐Art and Future Perspectives

Wiesbrock

Hoogenboom

Schubert

2004

Macromol. Rapid Commun.

470

256

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Summary: Monomodal microwaves have overcome the safety uncertainties associated with the precedent domestic microwave ovens. After fast acceptance in inorganic and organic syntheses, polymer chemists have also recently discovered this new kind of microwave reactor. An almost exponential increase of the number of publications in this field reflects the steadily growing interest in the use of microwave irradiation for polymerizations. This review introduces the microwave systems and their applications in polymer syntheses, covering step‐growth and ring‐opening, as well as radical polymerization processes, in order to summarize the hitherto realized polymerizations. Special attention is paid to the differences between microwave‐assisted and conventional heating as well as the “microwave effects”.Results of search on number of publications on microwave‐assisted polymerizations, sorted by year.imageResults of search on number of publications on microwave‐assisted polymerizations, sorted by year.

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Section: Poly(amide Imide)smentioning

confidence: 99%

Microwave‐Assisted Polymer Synthesis: State‐of‐the‐Art and Future Perspectives

Wiesbrock

Hoogenboom

Schubert

2004

Macromol. Rapid Commun.

470

256

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“…By using this method, hydantoin compounds 7a-f (Scheme 2) were prepared through the reaction of cyanohydrin derivatives with ammonium carbonate. 34 …”

Section: 3-bis[44mentioning

confidence: 99%

New photosensitive poly(amid‐imide)s containing chalcone moiety and hydantoin derivatives in the main chain: Synthesis and characterization

Nasr‐Isfahani

Faghihi

Mozaffari

2009

J of Applied Polymer Sci

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Six new poly(amid-imide)s containing chalchone and hydantoin moieties in the main chain were synthesized through the polycondensation reaction of 1,3-bis[4,4 0 -bis(trimellityimido)phenyl]-2-propenone 6 with six hydantoin derivatives 7a-f in a medium consisting of triphenyl phosphite, calcium chloride, pyridine, and N-methyl-2-pyrrolidone. The polycondensation reaction produced a series of novel poly(amid-imide)s 8a-f in high yields with inherent viscosities between 0.26 and 0.42 dL/g. The resulting polymers were characterized by elemental analysis, viscosity measurements, solubility test, thermo gravimetric analysis (TGA and DTG), FTIR, and UV-Vis spectroscopy. 1,3-bis[4,4 0 -bis(trimellityimido)phenyl]-2-propenone 6 was prepared from a three-step reaction by using 4-nitro benzaldehyde 1 and 4-nitro acetophenone 2 as precursors.

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“…One of the most practical and widely accepted applications of chiral polymers is the use as chiral stationary phase (CSP) for the separation of racemic mixtures by highperformance liquid chromatography (HPLC). Recently, the optically active polymers have been synthesized by reaction of an optically active monomer with several diamines via usual polymerization techniques (16)(17)(18)(19)(20)(21)(22)(23)(24).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of New Optically Active Poly(amide-imide)s from N,N′-(bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetra carboxylic)-bis-L-isoleucine and Aromatic Diamines

Faghihi

Hajibeygi

Bayat

2010

Journal of Macromolecular Science, Part A

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Five new optically active aromatic poly(amide-imide)s (PAIs) 5a-e were prepared from a direct polycondensation reaction of a new diacid of N,N -(bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetra carboxylic)-bis-L-isoleucine 3 with various aromatic diamines 4a-e in a medium consisting of triphenyl phosphite (TPP), calcium chloride (CaCl 2 ), pyridine (Py) and N-methyl-2-pyrrolidone (NMP). The polycondensation reaction produced a series of novel poly(amid-imide)s 5a-e in quantitative yields with inherent viscosities of 0.39-0.51 dL/g. The resulting polymers were fully characterized by means of 1 H-NMR, FT-IR spectroscopy, elemental analyses, inherent viscosity, solubility test, specific rotation and thermal properties of them were investigated using TGA/DTG and differential scanning calorimeter (DSC). The diacid 4 was synthesized by the condensation reaction of bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride 1 with L-isoleucine 2 in acetic acid solution.

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Microwave-assisted rapid synthesis of novel optically active poly(amide-imide)s containing hydantoins and thiohydantoins in main chain

Cited by 47 publications

References 17 publications

Microwave‐Assisted Polymer Synthesis: State‐of‐the‐Art and Future Perspectives

Microwave‐Assisted Polymer Synthesis: State‐of‐the‐Art and Future Perspectives

New photosensitive poly(amid‐imide)s containing chalcone moiety and hydantoin derivatives in the main chain: Synthesis and characterization

Preparation and Characterization of New Optically Active Poly(amide-imide)s from N,N′-(bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetra carboxylic)-bis-L-isoleucine and Aromatic Diamines

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