02134nas a2200205 4500008004100000022001400041245008800055210006900143260006800212300001400280490000700294520139500301653001501696653001801711653002401729653002201753100001401775700001701789856012201806 2009 eng d a0887-624X00aSolvent-induced self-assembly in cardanol-based urethane methacrylate comb polymers0 aSolventinduced selfassembly in cardanolbased urethane methacryla a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcJUN a2996-30090 v473 a

We report side chain urethane-methacrylate comb polymers based on the renewable resource cardanol and its saturated analogue 3-pentadecyl phenol and their self-assembly into pores, spheres, vesicles, tubes, and so forth. The monomers were synthesized in one pot by coupling 1 equiv. of isophorone diisocyanate with 1 equiv. of cardanol/pentadecyl phenol followed by coupling with 1 equiv. of hydroxyethyl methacrylate. They were polymerized free radically using benzoyl peroxide as the initiator and were characterized by NMR and FTIR, and their molecular weights were determined by gel permeation chromatography. The unique polymer design had sites for self-organization via hydrogen bonding of the side chain urethane units, pi-pi stacking interactions of the aromatic units as well as interdigitation of the long C(15) alkyl side chains in the polymer. The morphologies of solvent cast polymer films were studied using microscopic techniques such as scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. The polymers exhibited three-dimensional honeycomb morphology in CHCl(3), whereas in tetrahydrofuran, they formed spheres. The direct cardanol-derived polymer PCIH showed a tendency for multiple morphologies such as spheres and tubes in tetrahydrofuran. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2996-3009, 2009

10aMorphology10apolyurethanes10aRenewable resources10aself-organization1 aRekha, N.1 aAsha, S., K. uhttps://library.ncl.res.in/content/solvent-induced-self-assembly-cardanol-based-urethane-methacrylate-comb-polymers-001278nas a2200217 4500008004100000022001400041245013000055210006900185260010600254300001200360490000700372520038800379653002100767653002600788653002400814653002600838100002300864700002100887700002800908856012400936 2015 eng d a0014-305700aNew poly(ether urethane)s based on lignin derived aromatic chemicals via A-B monomer approach: synthesis and characterization0 aNew polyether urethanes based on lignin derived aromatic chemica aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcOCT a547-5570 v713 a

{omega-Hydroxyalkyleneoxy benzoyl azides were synthesized starting from lignin-derived phenolic acids (vanillic acid and syringic acid) and omega-haloalkanols (6-chlorohexanol and 11-bromoundecanol). These bio-derived A-B monomers were self-polycondensed to afford poly(ether urethane)s which exhibited reasonably high molecular weights (eta(inh) = 0.41-0.69 dL g(-1), and M-n

10aA-B type monomer10aPoly(ether urethane)s10aRenewable resources10aSelf-polycondensation1 aKuhire, Sachin, S.1 aAvadhani, C., V.1 aWadgaonkar, Prakash, P. uhttps://library.ncl.res.in/content/new-polyether-urethanes-based-lignin-derived-aromatic-chemicals-b-monomer-approach-002687nas a2200361 4500008004100000022001400041245021300055210006900268260000800337300001400345490000700359520141200366653002201778653002601800653003401826653001101860653001301871653001501884653001401899653002301913653002401936653002501960653003301985653002502018653001802043653002502061653001302086100002302099700002002122700002302142700002802165856013202193 2017 eng d a0887-624X00aPartially bio-based poly(amide imide)s by polycondensation of aromatic diacylhydrazides based on lignin-derived phenolic acids and aromatic dianhydrides: synthesis, characterization, and computational studies0 aPartially biobased polyamide imides by polycondensation of aroma cNOV a3636-36450 v553 a

Two new bio-based diacylhydrazide monomers, namely, 4,4-(propane-1,3-diylbis(oxy))bis(3-methoxybenzohydrazide) and 4,4-(propane-1,3-diylbis(oxy))bis(3,5-dimethoxybenzohydrazide) were synthesized starting from lignin-derived phenolic acids, namely, vanillic acid and syringic acid. A series of poly(amide imide)s was synthesized by polycondensation of these diacylhydrazide monomers with commercially available aromatic dianhydrides. Poly(amide imide)s showed inherent viscosity in the range 0.44-0.56 dLg(-1) and exhibited good solubility in organic solvents. Poly(amide imide)s could be cast into transparent, flexible, and tough films from their N,N-dimethylacetamide solutions. Poly(amide imide)s showed 10% weight loss in the temperature range 340-364 degrees C indicating their good thermal stability. Glass transition temperature (T-g) of poly(amide imides)s were measured by DSC and DMA which were in the range 201-223 degrees C and 214-248 degrees C, respectively. The T-g values of poly(amide imide)s were dependent on the number methoxy substituents on aromatic rings of diacylhydrazide monomers. Molecular dynamics simulation studies revealed that chain rigidity is the dominant factor for observed trends in T-g. (c) 2017 Wiley Periodicals, Inc.

10aBiobased Polymers10aComputational studies10aGlass-transaction temperature10alignin10aMonomers10aPlant oils10aPolyimide10aReneable resources10aRenewable resources10aStep-growth polymers10astructure-property relations10aSustanaible Polymers10aThermal night10aThermosetting resins10aVanillin1 aKuhire, Sachin, S.1 aSharma, Pragati1 aChakrabarty, Suman1 aWadgaonkar, Prakash, P. uhttps://library.ncl.res.in/content/partially-bio-based-polyamide-imides-polycondensation-aromatic-diacylhydrazides-based-lignin02482nas a2200277 4500008004100000022001400041245014400055210006900199260000800268300001200276490000800288520150900296653002801805653002301833653002801856653002101884653002401905100002101929700002501950700002101975700001701996700001802013700001902031700002802050856012602078 2022 eng d a1022-135200aSynthesis and characterization of partially biobased aromatic (Co)polycarbonates containing biphenylene units and pendant pentadecyl chains0 aSynthesis and characterization of partially biobased aromatic Co cJUL a21004490 v2233 a

2-Pentadecyl-[1,1''-biphenyl]-4,4''-diol (PBD) is synthesized starting from cashew nut shell liquid-a by-product of cashew processing industry. A new series of partially biobased aromatic (co)polycarbonates possessing biphenylene units and pendant pentadecyl chains is synthesized by solution polycondensation of PBD or varying compositions of PBD and bisphenol-A with triphosgene in dry dichloromethane. Inherent viscosities and number average molecular weights of (co)polycarbonates are in the range 0.51-1.24 dL g(-1) and 18 x 10(3)- 43.4 x 10(3) g mol(-1), respectively indicating the formation of reasonably high molecular weight polymers. Flexible, transparent, and free-standing films of (co)polycarbonates can be cast from chloroform solution. (Co)polycarbonates are characterized using Fourier transform infrared spectroscopy (FTIR), H-1 NMR, C-13 NMR spectroscopy, X-ray diffraction (XRD), differential scanning calorimetry, and thermogravimetric analysis. T-10 and T-g values of (co)polycarbonates are in the range 417-433 and 8-147 degrees C, respectively. It is demonstrated that the T-g values can be tuned by incorporation of appropriate mol% of PBD as a comonomer in Bisphenol-A-based copolycarbonates. The lowering of the T-g values of (co)polycarbonates can be attributed primarily to the packing disruptive effect of flexible pentadecyl chains. Furthermore, the effect of incorporation of PBD as a comonomer on water contact angle values of (co)polycarbonates is evaluated.

10aaromatic polycarbonates10abiobased bisphenol10aCashew nut shell liquid10apentadecyl chain10aRenewable resources1 aIchake, Amol, B.1 aNagane, Samadhan, S.1 aJadhav, Uday, A.1 aTorris, Arun1 aGrau, Etienne1 aCramail, Henri1 aWadgaonkar, Prakash, P. uhttps://library.ncl.res.in/content/synthesis-and-characterization-partially-biobased-aromatic-copolycarbonates-containing