02349nas a2200265   4500008004100000022001400041245011900055210006900174260007300243300001200316490000800328520137800336653004401714653001801758653002301776653001501799653002201814653000801836100001801844700001401862700002801876700002301904700002801927856012801955       2010                        eng d  a0921-510700aSynthesis and characterization of novel aromatic-aliphatic polyamides from bis-[(4-aminobenzyl)-4-benzamide] ether0 aSynthesis and characterization of novel aromaticaliphatic polyam  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a111-1160 v1683 a<p>A novel aromatic diamine monomer containing preformed aromatic-aliphatic amide and ether linkage, bis-[(4-aminobenzyl)-4-benzamide] ether (BABE) was prepared from 2-phenylacetonitrile. BABE was characterized by FT-IR, (1)H NMR, (13)C NMR and mass spectrometry. Five new aromatic polyamides were prepared by low temperature solution polymerization from BABE and different mole proportions of isophthaloyl chloride (IPC) or terephthaloyl chloride (TPC). The resulting polymers were characterized by means of FT-IR, inherent viscosity [eta(inh)], solubility, differential scanning calorimetry [DSC], thermogravimetric analysis [TGA] and X-ray diffraction [XRD]. Polyamides were obtained in good yields and had moderate to high molecular weights as indicated by inherent viscosities in the range 0.63-1.35 dL/g in (DMAc + 4% LiCl). XRD results showed the partly crystalline nature of polymers and these polymers dissolved in aprotic polar solvents containing LiCl. The solubility of copolyamides improved due to random placement of constituent IPC and TPC during polymerization. DSC analysis of these polyamides showed glass transition temperatures in the range of 197-204 degrees C, and they showed no weight loss below 336 degrees C when analyzed by TG. These polyamides have potential applications as engineering materials. (C) 2009 Elsevier B.V. All rights reserved.</p>10aBis-[(4-aminobenzyl)-4-benzamide] ether10aether linkage10aInherent viscosity10apolyamides10athermal stability10aXRD1 aPatil, A., S.1 aMedhi, M.1 aSadavarte, Nilakshi, V.1 aWadgaonkar, P., P.1 aMaldar, Noormahamad, N.  uhttps://library.ncl.res.in/content/synthesis-and-characterization-novel-aromatic-aliphatic-polyamides-bis-4-aminobenzyl-4-002154nas a2200253   4500008004100000022001400041245012400055210006900179260005700248300001400305490000700319520113600326653003801462653004601500653004401546653004201590653002301632100001801655700001901673700003001692700001901722700002801741856013101769       2011                        eng d  a0170-083900aSynthesis and characterization of soluble polyamides from bis-[(4 `-aminobenzyl)-4-benzamide] ether and various diacids0 aSynthesis and characterization of soluble polyamides from bis4 a  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAY  a1207-12180 v663 a<p>New aromatic diamine containing preformed amide, ether, and methylene; bis-[(4'-aminobenzyl)-4-benzamide] ether (BABE), was synthesized and characterized by FT-IR, NMR, and mass spectrometry. Aromatic-aliphatic polyamides were prepared from BABE with aliphatic/aromatic diacids via Yamazaki's polymerization. The polyamides were characterized by FT-IR, (1)H NMR, inherent viscosity [eta(inh)], solubility tests, differential scanning calorimetry [DSC], thermogravimetric analysis [TGA], and X-ray diffraction [XRD]. Polyamides had inherent viscosities 0.35-0.84 dL/g, soluble in aprotic polar solvents like N-methyl-2-pyrrolidone, N, N-dimethyl acetamide and dimethyl sulphoxide containing LiCl due to an amorphous to partially crystalline morphology; as XRD patterns indicated. DSC analysis of polyamides showed glass transition temperatures 166-268 A degrees C. Polyamides showed high thermal stability as they did not degrade below 300 A degrees C, had 10% weight loss temperature higher than 375 A degrees C, and the char yields at 900 A degrees C were 22-55%; indicating potential applications as engineering materials.</p>10aAryl-ether and methylene linkages10aBis-[(4 `-aminobenzyl)-4-benzamide] ether10aDirect phosphorylative polycondensation10aSoluble aromatic-aliphatic polyamides10aThermal properties1 aPatil, A., S.1 aSayyed, M., M.1 aBhairamadgi, Nagendra, S.1 aHan, Sung-Hwan1 aMaldar, Noormahamad, N.  uhttps://library.ncl.res.in/content/synthesis-and-characterization-soluble-polyamides-bis-4-aminobenzyl-4-benzamide-ether-and-0