Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ethylene oligomers measurement

Fig. 4. Ethylene production by MG pericarp discs treated with 50 /rg (uronic acid equivalents) of partially purified G7 citrus oligomers (a) or 30 rg of individual B fruit oligomers purified by HPLC. Water was used for the control. Peak numbers correspond to those shown in Fig. 2. Bars indicate SEs for the means of measurements of 8 discs/treatment. Fig. 4. Ethylene production by MG pericarp discs treated with 50 /rg (uronic acid equivalents) of partially purified G7 citrus oligomers (a) or 30 rg of individual B fruit oligomers purified by HPLC. Water was used for the control. Peak numbers correspond to those shown in Fig. 2. Bars indicate SEs for the means of measurements of 8 discs/treatment.
Shimada K et al (2005) Precise measurement of the self-diffusion coefficient for poly(ethylene glycol) in aqueous solution using uniform oligomers. J Chem Phys 122 244914... [Pg.274]

The present work investigates the action of pancreatic lipase on spread monolayers of ethylene glycol adipate oligomers. The tritiated hydrolysis products of the uniformly labeled substrate escape into the subphase. Surface radioactivity measurements allow us to determine the substrate concentration at the interface (2, 3) and the extent of the enzymic reaction. The kinetics were investigated as a function of subphase pH and temperature and substrate length and concentration. By... [Pg.217]

In Fig. 24d, the isothermal log k[ versus density curves for the dodecamers of polystyrene (PS), polymethylmethacrylate (PMMA), and polyethyleneglycol (PEG) 8LS well as tetracosane (as the dodecamer of ethylene) are compared the measurements were made in a capillary column with superbonded polyoctylsilox-ane as a stationary phase at 371 K (for details see [60]). The measurements demonstrate that the dodecamer of PS is the lea.st soluble oligomer, and that of PEG the best. The curves for tetracosane and PMMA, however, intersect giving evidence of the fact that no separation is possible at mobile phase densities near 0.7 g cm . ... [Pg.58]

Tg measurements have been performed on many other polymers and copolymers including phenol bark resins [71], PS [72-74], p-nitrobenzene substituted polymethacrylates [75], PC [76], polyimines [77], polyurethanes (PU) [78], Novolac resins [71], polyisoprene, polybutadiene, polychloroprene, nitrile rubber, ethylene-propylene-diene terpolymer and butyl rubber [79], bisphenol-A epoxy diacrylate-trimethylolpropane triacrylate [80], mono and dipolyphosphazenes [81], polyethylene glycol-polylactic acid entrapment polymers [82], polyether nitrile copolymers [83], polyacrylate-polyoxyethylene grafts [84], Novolak type thermosets [71], polyester carbonates [85], polyethylene naphthalene, 2,6, dicarboxylate [86], PET-polyethylene 2,6-naphthalone carboxylate blends [87], a-phenyl substituted aromatic-aliphatic polyamides [88], sodium acrylate-methyl methacrylate multiblock copolymers [89], telechelic sulfonate polyester ionomers [90], aromatic polyamides [91], polyimides [91], 4,4"-bis(4-oxyphenoxy)benzophenone diglycidyl ether - 3,4 epoxycyclohexyl methyl 3,4 epoxy cyclohexane carboxylate blends [92], PET [93], polyhydroxybutyrate [94], polyetherimides [95], macrocyclic aromatic disulfide oligomers [96], acrylics [97], PU urea elastomers [97], glass reinforced epoxy resin composites [98], PVOH [99], polymethyl methacrylate-N-phenyl maleimide, styrene copolymers [100], chiral... [Pg.97]

Seo Y, Kang T, Choi HJ, Cho J (2007) Electrocapillary wave diffraction measurement of interfacial tensitm reductitm between two oligomers (poly(dimethyl siloxane) and poly (ethylene glycol)) by a block copolymer and the mean-field theory prediction. J Phys Chem C 111 5474-5480... [Pg.202]

Measurements were also carried out for three series of copolymers copolymers of styrene with methacrylic acid (S-MAA) and crosslinked copolymers of the styrene and divinylbenzene (S-DVB), those of methyl methacrylate and dimethacrylate ethylene glycol (MMA-DMEG) as well as for the set of oligom-ethacrylates, oligocarbonat and oligo-a-methyl styrenes. The preparation of samples and experimental technique were described in [31-33],... [Pg.60]

See other pages where Ethylene oligomers measurement is mentioned: [Pg.123]    [Pg.118]    [Pg.118]    [Pg.385]    [Pg.60]    [Pg.130]    [Pg.709]    [Pg.277]    [Pg.76]    [Pg.34]    [Pg.162]    [Pg.148]    [Pg.124]    [Pg.253]    [Pg.52]    [Pg.542]    [Pg.120]    [Pg.407]    [Pg.223]    [Pg.153]    [Pg.216]    [Pg.224]    [Pg.533]    [Pg.99]    [Pg.344]    [Pg.257]    [Pg.540]    [Pg.1255]    [Pg.104]    [Pg.226]    [Pg.452]    [Pg.408]    [Pg.624]    [Pg.31]    [Pg.636]    [Pg.2]    [Pg.7]    [Pg.222]    [Pg.443]    [Pg.56]    [Pg.280]    [Pg.222]    [Pg.183]   
See also in sourсe #XX -- [ Pg.1489 ]



SEARCH



Ethylene oligomers

© 2024 chempedia.info