02333nas a2200241   4500008004100000022001400041245011800055210006900173260008700242300001200329490000700341520139100348653003001739653002101769653001401790653002601804653003101830100002801861700002201889700002101911700002801932856013101960       2013                        eng d  a0954-008300aNew organosoluble aromatic poly(esterimide)s containing pendent pentadecyl chains: synthesis and characterization0 aNew organosoluble aromatic polyesterimides containing pendent pe  a1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLANDbSAGE PUBLICATIONS LTDcNOV  a735-7430 v253 a<p>A new diimide dicarboxylic acid, namely 2,2-(4-pentadecyl-1,3-phenylene)bis(1,3-dioxoisoindoline-5-carboxylic acid), containing preformed imide rings and pentadecyl chain, was synthesized by the reaction of 4-pentadecylbenzene-1,3-diamine with trimellitic anhydride. A series of new aromatic poly(esterimide)s (PEIs) was synthesized using diphenylchlorophosphate-activated direct polycondensation of 2,2-(4-pentadecyl-1,3-phenylene)bis(1,3-dioxoisoindoline-5-carboxylic acid), with five commercially available bisphenols, namely 4,4-isopropylidenediphenol (I), 4,4-(hexafluoroisopropylidene)diphenol (II), 4,4-oxydiphenol (III), 4,4-biphenol (IV), and 4,4-(9-fluorenylidene)diphenol (V) in the presence of pyridine and lithium chloride. Inherent viscosities of PEIs were in the range 0.54-0.83dLg(-1) in chloroform (CHCl3) at 30 +/- 0.1 degrees C. PEIs containing pendent pentadecyl chains were soluble in organic solvents such as CHCl3, m-cresol, N, N-dimethylacetamide, 1-methyl-2-pyrrolidinone, pyridine, and nitrobenzene. Tough, transparent, and flexible films of PEIs could be cast from their CHCl3 solutions. PEIs exhibited glass transition temperature in the range 145-198 degrees C. The temperature at 10% weight loss of PEIs, determined by thermogravimetric analysis under the nitrogen atmosphere, was in the range of 450-470 degrees C indicating good thermal stability.</p>10apendent pentadecyl chains10aPolycondensation10aPolyimide10aPreformed imide rings10aThermogravimetric analysis1 aSadavarte, Nilakshi, V.1 aPatil, Sachin, S.1 aAvadhani, C., V.1 aWadgaonkar, Prakash, P.  uhttps://library.ncl.res.in/content/new-organosoluble-aromatic-polyesterimides-containing-pendent-pentadecyl-chains-synthesis-002410nas a2200229   4500008004100000022001400041245015500055210006900210260006700279300001200346490000700358520145600365653004101821653004401862653002501906653002001931653002901951100002201980700002202002700002802024856012802052       2015                        eng d  a0959-810300aNew atom transfer radical polymerization initiator based on phenolphthalein for the synthesis of bis-allyloxy functionalized polystyrene macromonomers0 aNew atom transfer radical polymerization initiator based on phen  a111 RIVER ST, HOBOKEN 07030-5774, NJ USAbWILEY-BLACKWELLcMAR  a413-4200 v643 a<p>A new atom transfer radical polymerization (ATRP) initiator, namely 2-(1,1-bis(4-(allyloxy)phenyl)-3-oxoisoindolin-2-yl)ethyl 2-bromo-2-methylpropanoate, was synthesized starting from phenolphthalein, a commercially available and an inexpensive chemical. Well- defined bis-allyloxy functionalized polystyrene macromonomers (M-n,M-GPC 4800-11 700gmol(-1)) with controlled molecular weight and narrow molecular weight distribution (1.05-1.09) were synthesized using ATRP by varying the monomer to initiator feed ratio. The presence of allyloxy functionality on polystyrene was confirmed by Fourier transform infrared and H-1 NMR spectroscopy. A kinetic study of polymerization revealed pseudo-first-order kinetics with respect to monomer consumption. Initiator efficiency was found to be in the range 0.80-0.95. Matrix-assisted laser desorption ionization time of flight spectra showed a narrow molecular weight distribution with control over the molecular weight. The reactivity of the allyloxy groups on polystyrene was successfully demonstrated by quantitative photochemical thiol-ene click reaction with benzyl mercaptan as the model thiol reagent. Furthermore, the thiol-ene click reaction was exploited to introduce other reactive functional groups such as hydroxyl and carboxyl by reaction of ,-bis-allyloxy functionalized polystyrene with 2-mercaptoethanol and 3-mercaptopropionic acid, respectively. (c) 2014 Society of Chemical Industry</p>10aatom transfer radical polymerization10abis-allyloxy functionalized polystyrene10afunctional initiator10aphenolphthalein10athiol-ene click reaction1 aPatil, Sachin, S.1 aMenon, Shamal, K.1 aWadgaonkar, Prakash, P.  uhttps://library.ncl.res.in/content/new-atom-transfer-radical-polymerization-initiator-based-phenolphthalein-synthesis-bis-0