Novel Friedel-Crafts polyketones containing naphthalene moiety were synthesized via the electrophilic Friedel-Crafts polycondensation method. The desired polyketones were obtained by the interaction of newly synthesized dinaphthylidenecycloalkanone monomers with different aliphatic and aromatic diacid chlorides. The structures of new monomers and polymers were confirmed by elemental and spectral analyses, besides X-ray single crystal data for the two new monomers. The new polyketones were characterized by solubility, viscometry, thermal properties, scanning electron microscopy and antimicrobial activity test. All the polyketones were soluble in formic acid as protonic solvent giving yellowish to brown colors. Some of the polyketones were partially soluble in n-hexane, benzene and chloroform. The thermal properties of those polymers were evaluated by TGA; DTG and DTA measurements. The desired polyketones have high thermal stability at T10 except polymer 3b which have low T10 value. FDT for all polyketones is nearly completed at around 522–677◦C. The morphological properties of polyketone 2b were tested by SEM measurements. The synthesized monomers and polymers were screened for their antibacterial and antifungal activities. They showed a moderated antibacterial activity against tested Gram-negative and Gram-positive bacteria and no significant influence against the selected fungi species except monomer 1b and polymers 2a, 3b.

Novel Friedel-Crafts polyketones containing naphthalene moiety were synthesized via the electrophilic Friedel-Crafts polycondensation method. The desired polyketones were obtained by the interaction of newly synthesized dinaphthylidenecycloalkanone monomers with different aliphatic and aromatic diacid chlorides. The structures of new monomers and polymers were confirmed by elemental and spectral analyses, besides X-ray single crystal data for the two new monomers. The new polyketones were characterized by solubility, viscometry, thermal properties, scanning electron microscopy and antimicrobial activity test. All the polyketones were soluble in formic acid as protonic solvent giving yellowish to brown colors. Some of the polyketones were partially soluble in n-hexane, benzene and chloroform. The thermal properties of those polymers were evaluated by TGA; DTG and DTA measurements. The desired polyketones have high thermal stability at T10 except polymer 3b which have low T10 value. FDT for all polyketones is nearly completed at around 522–677◦C. The morphological properties of polyketone 2b were tested by SEM measurements. The synthesized monomers and polymers were screened for their antibacterial and antifungal activities. They showed a moderated antibacterial activity against tested Gram-negative and Gram-positive bacteria and no significant influence against the selected fungi species except monomer 1b and polymers 2a, 3b.

A new series of heteroaromatic polyazomethines containing 1,8-naphthyridine moieties in the polymer backbone were synthesized with a solution polycondensation technique. A new heteroaromatic monomer containing 1,8-naphthyridine moieties (4-ethoxy-2,7-dicarboxaldehyde- 1,8-naphthyridine) was synthesized with an analogous synthetic sequence and confirmed by elemental and spectral data. The resulting polymers were characterized by elemental, spectral analyses, solubility and viscometry measurements. All the synthesized polyazomethines had better solubility in polar aportic solvents. The thermal properties of those polymers were evaluated by thermogravimetric analysis, differential thermogravimetry, and differential thermal analysis measurements and correlated to their structural units. All the polymers had nearly similar maximum polymer decomposition temperatures, which were in the range 557–577
C. A very large difference between the glass transitions (92–222
C) was observed. In addition, with gel permeation chromatography, the molecular weight determination of selected examples of those polymers was evaluated. The values of the average molecular weight for polyazomethines 7b and 7c were 34,914 and 24,859, respectively. On the other hand, the biological screening of all of the synthesized polyazomethines was performed in variety of bacteria and fungi. Most of the polyazomethines showed a significant influence against Gram-negative bacteria. The minimum inhibitory concentration of the most active polymers was 0.05 mg/mL. VC 2012 Wiley Periodicals, Inc. J Appl Polym Sci 126: 2–12, 2012

A new series of heteroaromatic polyazomethines containing 1,8-naphthyridine moieties in the polymer backbone were synthesized with a solution polycondensation technique. A new heteroaromatic monomer containing 1,8-naphthyridine moieties (4-ethoxy-2,7-dicarboxaldehyde- 1,8-naphthyridine) was synthesized with an analogous synthetic sequence and confirmed by elemental and spectral data. The resulting polymers were characterized by elemental, spectral analyses, solubility and viscometry measurements. All the synthesized polyazomethines had better solubility in polar aportic solvents. The thermal properties of those polymers were evaluated by thermogravimetric analysis, differential thermogravimetry, and differential thermal analysis measurements and correlated to their structural units. All the polymers had nearly similar maximum polymer decomposition temperatures, which were in the range 557–577
C. A very large difference between the glass transitions (92–222
C) was observed. In addition, with gel permeation chromatography, the molecular weight determination of selected examples of those polymers was evaluated. The values of the average molecular weight for polyazomethines 7b and 7c were 34,914 and 24,859, respectively. On the other hand, the biological screening of all of the synthesized polyazomethines was performed in variety of bacteria and fungi. Most of the polyazomethines showed a significant influence against Gram-negative bacteria. The minimum inhibitory concentration of the most active polymers was 0.05 mg/mL. VC 2012 Wiley Periodicals, Inc. J Appl Polym Sci 126: 2–12, 2012

A new series of heteroaromatic polyazomethines containing 1,8-naphthyridine moieties in the polymer backbone were synthesized with a solution polycondensation technique. A new heteroaromatic monomer containing 1,8-naphthyridine moieties (4-ethoxy-2,7-dicarboxaldehyde- 1,8-naphthyridine) was synthesized with an analogous synthetic sequence and confirmed by elemental and spectral data. The resulting polymers were characterized by elemental, spectral analyses, solubility and viscometry measurements. All the synthesized polyazomethines had better solubility in polar aportic solvents. The thermal properties of those polymers were evaluated by thermogravimetric analysis, differential thermogravimetry, and differential thermal analysis measurements and correlated to their structural units. All the polymers had nearly similar maximum polymer decomposition temperatures, which were in the range 557–577
C. A very large difference between the glass transitions (92–222
C) was observed. In addition, with gel permeation chromatography, the molecular weight determination of selected examples of those polymers was evaluated. The values of the average molecular weight for polyazomethines 7b and 7c were 34,914 and 24,859, respectively. On the other hand, the biological screening of all of the synthesized polyazomethines was performed in variety of bacteria and fungi. Most of the polyazomethines showed a significant influence against Gram-negative bacteria. The minimum inhibitory concentration of the most active polymers was 0.05 mg/mL. VC 2012 Wiley Periodicals, Inc. J Appl Polym Sci 126: 2–12, 2012

The synthesis of high-molar-mass first- and second-generation, aromatic sulfonamide-based dendronized polymers PG1(CH3) and PG1(NO2) as well as PG2(CH3) and PG2(NO2) has been achieved. For PG3(CH3) at least oligomeric material could be obtained. The polymers exhibit glass transition temperatures in the range of 135– 162 8C and are valuable components for a presently ongoing in depth analysis of the persistence length of dendronized polymers by SANS. The corresponding monomers MG2(CH3) and MG2(NO2) were crystallized and their structures in the crystal determined by XRD. These single crystals are the first ever obtained of dendritic macromonomers. The polymerizable units were found not to be in a proper spatial relation to allow for a solid-state polymerization.

A new interesting series of linear, unsaturated copolyesters containing cyclopentanone moiety in the main chain were synthesized by interfacial polycondensation of a mixture containing one mole of both monomeric units 2,5-bis (4-hydroxybenzylidene) cyclopentanone (Ia) and 2,5-bis (4-hydroxy-3- methoxybenzylidene) cyclopentanone (Ib) together with two moles of different acid chlorides. The yield and the values of reduced viscosity of the copolyesters were found to be affected by the kind of organic phase, contribution of benzyltriethylammonium chloride as a catalyst, the quantitative ratio of organic to aqueous phase, concentration of hydrogen chloride acceptor and time of addition of the acid chloride. The resulting copolyesters were characterized by elemental and spectral analyses. Moreover, the various characteristics of the various types of prepared copolymers including: solubility, viscosity, X-ray diffraction analysis, DSC and TGA were determined and discussed. The electrical properties of the copolyesters were tested and the morphology of selected examples of the copolyesters was examined by scanning electron microscopy.

A new interesting series of linear, unsaturated copolyesters containing cyclopentanone moiety in the main chain were synthesized by interfacial polycondensation of a mixture containing one mole of both monomeric units 2,5-bis (4-hydroxybenzylidene) cyclopentanone (Ia) and 2,5-bis (4-hydroxy-3- methoxybenzylidene) cyclopentanone (Ib) together with two moles of different acid chlorides. The yield and the values of reduced viscosity of the copolyesters were found to be affected by the kind of organic phase, contribution of benzyltriethylammonium chloride as a catalyst, the quantitative ratio of organic to aqueous phase, concentration of hydrogen chloride acceptor and time of addition of the acid chloride. The resulting copolyesters were characterized by elemental and spectral analyses. Moreover, the various characteristics of the various types of prepared copolymers including: solubility, viscosity, X-ray diffraction analysis, DSC and TGA were determined and discussed. The electrical properties of the copolyesters were tested and the morphology of selected examples of the copolyesters was examined by scanning electron microscopy.

A new interesting series of linear, unsaturated copolyesters containing cyclopentanone moiety in the main chain were synthesized by interfacial polycondensation of a mixture containing one mole of both monomeric units 2,5-bis (4-hydroxybenzylidene) cyclopentanone (Ia) and 2,5-bis (4-hydroxy-3- methoxybenzylidene) cyclopentanone (Ib) together with two moles of different acid chlorides. The yield and the values of reduced viscosity of the copolyesters were found to be affected by the kind of organic phase, contribution of benzyltriethylammonium chloride as a catalyst, the quantitative ratio of organic to aqueous phase, concentration of hydrogen chloride acceptor and time of addition of the acid chloride. The resulting copolyesters were characterized by elemental and spectral analyses. Moreover, the various characteristics of the various types of prepared copolymers including: solubility, viscosity, X-ray diffraction analysis, DSC and TGA were determined and discussed. The electrical properties of the copolyesters were tested and the morphology of selected examples of the copolyesters was examined by scanning electron microscopy.

A new interesting series of linear, unsaturated copolyesters containing cyclopentanone moiety in the main chain were synthesized by interfacial polycondensation of a mixture containing one mole of both monomeric units 2,5-bis (4-hydroxybenzylidene) cyclopentanone (Ia) and 2,5-bis (4-hydroxy-3- methoxybenzylidene) cyclopentanone (Ib) together with two moles of different acid chlorides. The yield and the values of reduced viscosity of the copolyesters were found to be affected by the kind of organic phase, contribution of benzyltriethylammonium chloride as a catalyst, the quantitative ratio of organic to aqueous phase, concentration of hydrogen chloride acceptor and time of addition of the acid chloride. The resulting copolyesters were characterized by elemental and spectral analyses. Moreover, the various characteristics of the various types of prepared copolymers including: solubility, viscosity, X-ray diffraction analysis, DSC and TGA were determined and discussed. The electrical properties of the copolyesters were tested and the morphology of selected examples of the copolyesters was examined by scanning electron microscopy.