New ethylenebismaleimide-diamine oligoimide-II (EBMDDMCMHQ) containing 8-hydroxyquinoline as a pendent group(s) was prepared using ethylenebismaleimide-diamine oligoimide-I (EBMDDM) and 5-chloromethyl-8-hydroxyquinoline hydrochloride (CMHQ) in the presence of base catalyst. Ethylenebismaleimide-diamine oligoimide-I (EBMDDM) was prepared by the Michael addition reaction of ethylenebismaleimide (EBM) and 4,4'-diaminodiphenyl methane (DDM). The resulting oligoimide-II (EBMDDMCMHQ) was characterized by spectral techniques. Polymeric metal chelates of oligoimide-II were prepared using transition metal ions and were duly characterized. Ion-exchange properties of oligoimide-II for Fe(III), Zn(II), Ni(II), and Cu(II) metal ions were also studied by batch-equilibration method. It has good metal ion uptake capacity at varying pH ranges.

A series of oxazole and thereof imidazole derivatives were prepared from 2-chloro-7-methyl-3-formyl quinoline. The structures of all synthesized compounds were elucidated by elemental, IR, 1 HNMR, 13 CNMR spectra. Supplementary to these, they were assayed in vitro for their antimicrobial activity; it was revealed that some synthesized derivatives were exhibiting competent biological activity against both gram negative and gram positive bacterial species and fungal microorganisms.

Novel bisazo-bisazomethine disperse dyes were prepared by the coupling of diazotized solutions of various aromatic amines with 2,2'-{sulfonylbis [4,1-phenylene nitrilomethylylidene]} diphenol (SB). Above Schiff base was prepared by the condensation of 2-hydroxybenzaldehyde with 4,4'-sulphonyl-dianiline (Dapson). The resultant dyes were characterized by elemental analysis, IR and (1)H NMR spectral studies. The UV Visible absorption spectral data were investigated in dimethylformamide (DMF) and are discussed in terms of structural property relationship. Their dyeing performance as disperse dyes has been assessed on polyester fabrics. The results show that a better hue was obtained on polyester fabrics and have mild to moderate fastness properties.

A series of oxazole and their imidazole derivatives were prepared from 6-bromo-2-chloro-3-formylquinoline. The structures of all the synthesized compounds were elucidated by elemental, IR, H-1 NMR, C-13 NMR spectra. They were assayed in vitro for their antimicrobial activity. It was revealed that some synthesized derivatives show remarkable biological activity against both gram-negative and gram, positive bacterial species and fungal microorganisms.

Novels disperse and mordent azo dyes were prepared by coupling of various diazo solutions of aromatic amines with 2-hydroxy-4-methoxy-benzophenone. The resultant dyes were characterized by elemental analyses, IR and H-1 NMR spectral studies. The UV-visible spectral data have also been discussed in terms of structural property relationship. The dyeing performance of all the dyes was evaluated on wool and polyester textile fibers. The dyeing of chrome pretreated wool and polyesters have also been monitored. The results show that better hue was obtained on mordented fiber. Results of bactericidal studies of chrome pretreated fibers revealed that the toxicity of mordented dyes against bacteria is fairly good. Some of the dyes have also been used for pigmentation as well as photo stabilization of polymethyl methacrylate sheet.

A series of oxazole and imidazole derivatives were prepared from 2-chloro-3-formylquinoline. The structures of all the synthesized compounds were elucidated by elemental, IR. (1)H and (13)C NMR spectra. They were also assayed in vitro for their antimicrobial activity. It was revealed that some synthesized derivatives were exhibiting competent biological activity against both gram negative and gram positive bacterial species and fungal microorganisms.

Novel polyimide-II containing 8-hydroxyquinoline as pendent groups was prepared by reacting N,N'-(1,1'-biphenyl)-4,4'-diyl bismaleimide--diamine polyimide-I (BPBMDDM) with 5-chloromethyl-8-hydroxyquinoline hydrochloride (CMHQ) in the presence of base catalyst. N,N'-(1,1'-biphenyl)-4,4'-diyl bismaleimide--diamine polyimide-I (BPBMDDM) was prepared by Michael addition reaction of N,N'-(1,1'-biphenyl)-4,4'-diyl bismaleimide (BPBM) with 4,4'-diaminodiphenyl methane (DDM). The resulting polyimide-II (BPBMDDMCMHQ) was characterized by spectral techniques. Polymeric metal chelates of polyimide-II were prepared using the transition metal ions Zn(II), Cu(II), Ni(II), Co(II), and Mn(II), and were characterized. Ion-exchange properties of polyimide-II (BPBMDDMCMHQ) for Fe(III), Zn(II), Ni(II) and Cu(II) metal ions were also studied by batch-equilibration method. The polyimide-II (BPBMDDMCMHQ) has good metal uptake capacity at varying pH range and can be recycled. It has thermal stability up to 240C.

A new chelating copolymer (HQDMA) has been synthesized through copolymerization of 8-hydroxyquinoline and dimethylolacetone monomers in the presence of base as a catalyst. This newly developed copolymer ligand (H2L) has been used to prepare a series of five polymeric chelates (ML) by using Zn(II), Cu(II), Ni(II), Co(II) and Mn(II) metal ions. Both the parent ligand and its metal chelates have been systemically investigated in detail to elucidate the chemical structure and thermal behaviour by elemental analyses, spectral (IR and electronic) characterization, number-average molecular mass \((\overline M _n )\) determination and thermogravimetric analysis (TG). In addition to these, magnetic susceptibility measurements have also been carried out for studying geometry and metal-ligand stoichiometry of polymeric chelates.

Novel polymeric chelates of a 8-hydroxyquinoline-based polymeric ligand (H2L), namely 8-hydroxyquinoline-dimethylolurea (HQDMU), were prepared with the metal ions Zn(II), Cu(II), Ni(II), Co(II) and Mn(II). The novel 8-hydroxyquinoline-dimethylolurea (HQDMU) polymeric ligand (H2L) was synthesized by condensation of N,N′-dimethylolurea (DMU) with 8-hydroxyquinoline in the presence of a base catalyst. All the polymeric chelates (ML2) and the parent ligand (H2L) were characterized by elemental analyses and IR spectral studies. The number-average molecular weight of the polymeric chelates and polymeric ligand (H2L) was determined by non-aqueous conductometric titration. The thermal stability of polymeric ligand and chelates was investigated by thermogravimetric analysis (TGA). Thermogravimetric parameters such as T0 (initial decomposition temperature), T10 (temperature for 10% weight loss), Tmax. (temperature of maximum rate of degradation), IPDT (integral procedural decomposition temperature) and the activation energy Ea, of the degradation process were calculated. Besides this, diffusion spectral studies of the polymeric chelates were characterized by determining their magnetic susceptibilities.

Amino terminated oligoimides (AOIs) were prepared by the Michael addition reaction of various bismaleimides(1a–c) with excess of 4,4′-diamino diphenyl methane (DDM). These AOIs were characterized by elemental analysis, FT-IR spectral studies and number average molecular weight estimated by non-aqueous conductometric titrations. AOIs were then reacted with acrylol chloride and resultant acryl end capped oligoimides (AcOIs) sample were also characterized thermogravimetrically. Each of these AcOI was then combined with the commercially available thermoplastic polyamic acid solution in various proportions. The resultant suspensions were then heated in the presence of azobisisobutyronitrile (AIBN) as a initiator. The AcOI polymerized through double bond and polyamic acid is cyclized to form SEMI-IPN polymides, which were analyzed thermogravimetrically. The glass fibre reinforced composites were fabricated by using the suspensions of the AcOI and polyamic acid solution. The composites of SEMI IPN polymides were analyzed for their mechanical, chemical and electrical properties.

ABSTRACT Coordination polymers of a novel bis(oxine) bidentate ligand, namely 1,9-bis(8-hydroxyquinolin-5-yl)-2,5,8-trioxanonane (BHQTN) (H2L) have been prepared with the metal ions Zn+2, Cu+2, Ni+2, Co+2, and Mn+2. The novel bis(bidentate) ligand BHQTN was synthesized by condensation of 5-chloromethyl-8-hydroxyquinoline hydrochloride with diethylene glycol in the presence of a base catalyst. All of these coordination polymers and the parent ligand were characterized by elemental analyses and IR spectral studies. The diffuse reflectance spectral studies and magnetic susceptibilities of all of the coordination polymers have also been performed. Thermogravimetric parameters such as To, T10, Tmax., IPDT, and the activation energy of the thermo-degradation process were calculated.

Coordination polymers of a novel bis(oxine) bidentate ligand, namely 1,8-bis(8-hydroxyquinolin-5-yl)-2,7-dioxaoctane (BQDO) (H2L), have been prepared with the metal ions Cu(II), Co(II), Ni(II), Mn(II), and Zn(II). The novel his(bidentate) ligand (H2L) was synthesized by condensation of 5-chloromethyl-8-hydroxyquinoline hydrochloride with butylene glycol in the presence of a base catalyst. All of these coordination polymers and the parent ligand were characterized by elemental reflectance spectral studies analyses and IR spectral studies. The diffuse reflective spectral studies of all of the coordination polymers also were performed. The number-average molecular weights (M-n) of all of the coordination polymers were determined by nonaqueous conductometric titrations. In order to determine thermal stability trend, thermogravimetric parameters, such as T-o (initial decomposition temperature), T-10 (temperature for 10% weight loss), T-max. (temperature of maximum rate of degradation), IPDT (integral procedural decomposition temperature), and the activation energy E-a of the thermodegradation process were calculated. All of the coordination polymers were also characterized by their magnetic susceptibilities.

Acetone-formaldehyde (AF) resin having methylol (-CH2OH) groups has been prepared and polycondensed with resorcinol (R) at equimol. ratio of AF:R to produce acetone-formaldehyde-resorcinol (AFR) resin. The three components interpenetrating polymer networks (IPNs) have been prepared from this acetone-formaldehyde-resorcinol (AFR) resin, diglycidyl ether of bisphenol-A (DGEBA) (a commercial epoxy resin) and methyl methacrylate (MMA) (a vinyl monomer) using simultaneous mode of IPN synthesis. The curing catalyst hexamethylenetetramine (HMTA) for AFR, radical initiator 2,2'-azobisisobutyronitrile (AIBN) for MMA and curing catalyst 4,4'-diaminodiphenyl methane (DDM) for the epoxy resin was employed. The various properties of three components were evaluated. All the IPNs were characterized in terms of differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The glass-fiber reinforced composites (i.e. laminates) of produced IPN systems have also been fabricated and their chemical resistivity and mechanical properties evaluated.

An acetone-formaldehyde (AF) resin containing methylol (-CH2OH) groups was prepared and condensed with m-aminophenol (mAP) in the presence of alcoholic alkali catalyst at varying mole ratios of AF:mAP; 1:1, 1:1.5 and 1:2. The resultant AF-mAP resin was characterized by elemental analysis, IR spectral studies, number average molecular weight ((M) over bar(n)) estimated by non-aqueous conductometric titration and thermogravimetry. The curing reaction between AF-mAP resin and hexamethylenetetramine (HMTA) was monitored by differential scanning calorimetery (DSC) and kinetic parameters were evaluated. Glass-reinforced composites (i.e. laminates) based on the AF-mAP-HMTA system were also prepared and characterized by mechanical properties.

Acetone-formaldehyde (AF) resin having dihydroxy functionality (-CH2OH) has been prepared and polycondensed with m-cresol (mC) at equimolar ratio of AF:mC to produce acetone-formaldehyde-m-cresol (AF-mC) resin. The three component IPNs have been prepared from this acetone-formaldehyde-m-cresol (AF-mC) resin, diglycidyl ether of bisphenol-A (a commercial epoxy resin) and methyl methacrylate using simultaneous mode of IPN synthesis. The curing catalyst, hexamethylenetetramine, for AF-mC, radical initiators such as 2,2'-arobisisobutyronitrile for methyl methacrylate and curing catalyst, 4,4'-diamino diphenyl methane, for the epoxy resin were employed. The various proportions of three components were employed. All the IPNs were characterized in terms of their thermal stabilities with DSC, TGA. The glass fibre reinforced composites of produced IPN syrups have been fabricated and their chemical resistivity and mechanical properties were evaluated.

An amino-terminated oligoimide was prepared by the Michael addition reaction of 4, 4′-diamino diphenyl ether bismaleimide (DDEBM) and 4, 4′-diamino diphenyl methane (DDM) at a DDEBM:DDM molar ratio of 1:2. The poly(amido-imide)s (PAI)s were also prepared by condensation of this DDEBM:DDM oligoimide with various aliphatic bisesters. The resultant PAIs were characterized by elemental analysis, IR spectral studies and number average molecular weight ( Mn) estimated by non-aqueous conductometric titration. The curing behaviour of the diglycidyl ether of bisphenol-A (a commercial epoxy resin) (DGEBA)–PAI system was monitored by differential scanning calorimetry (DSC). Unreinforced PAI–epoxy cured products have also been prepared and analysed thermogravimetrically. Glass and carbon fibre reinforced laminates(i.e. composites) of the PAI–epoxy resin system have been prepared and duly characterized. Their mechanical properties have been compared with commercial composites.

Three component IPNs Glass fibre reinforced composites (GRC) have been prepared from acetone-formaldehyde-phenol (AF-P) resin, Diglycedyl ether of bisphenol-A (DGEBA) (a commercial epoxy resin) and methyl methacrylate (MMA) (a vinyl monomer). The curing catalyst hexamethylene tetramine (HMTA) for AF-P, radical initiators 2,2′-azobisisobutyronitrile (AIBN) for MMA and curing catalyst 4,4′-diamino diphenyl methane (DDM) for epoxy resin were employed. All the IPN GRCs were characterized in terms of their resistance to chemical reagents, thermal behaviour (DSC, TGA) and mechanical properties.

Acetone–formaldehyde (AF) resin having the methylol group (–CH2OH) has been prepared and characterized. The condensation of AF resin with phenol (P) was carried out in the presence of alcoholic alkali catalyst at varying ratios of AF:P, namely 1:1, 1:1.5 and 1:2. The resultant AFP resins were characterized by elemental analysis, IR spectral studies, number average molecular weight ( Mn) estimated by non-aqueous conductometric titration, and thermogravimetry. The curing study of AFP resins with hexamethylene tetramine (HMTA) was monitored by differential scanning calorimetry (DSC) and kinetic parameters were evaluated. Glass-reinforced composites based on the AFP–HMTA system have also been prepared and characterized.

Novel poly(ether-imide)s were prepared by Diels-Alder (DA) reaction of 1,1'-(1-methylethylidene)bis[4-{1-(2-furanyl-methoxy)-2-propanoloxy}] benzene with various bismaleimides. The DA reaction was carried out in solution using tetrahydrofuran (THF) as solvent, as well as ih bulk. The post polymerization, involving aromatization of tetrahydrophthalimide intermediates was accomplished in the presence of acetic anhydride. All the poly(ether-imide)s were characterized by elemental analyses, infrared spectrometry and thermogravimetry. The glass reinforced composites of produced PEIs have also been prepared and characterized.