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Styragel Poly

FIGURE I 1.3 Analysis of poly(l, 4-butylene terephthalate) usinga Waters Alliance narrow-bore GPC system. Columns 4.6 X 300 mm Styragel HR 2, HR 3, and HR 4. Mobile phase hexafluoroisopropanol. 0.35 ml/min at 30 C. (Chromatogram courtesy of Peter Alden, Waters Corp.)... [Pg.333]

Materials. GMC and PCLS were synthesized by free radical solution polymerization initiated by benzoyl peroxide as described previously (5,6). Nearly mono and polydisperse polystyrenes were obtained from Pressure Chemical Co. and the National Bureau of Standards respectively. Molecular weight and polydispersity were determined by gel permeation chromatography (GPC) using a Water Model 244 GPC, equipped with a set (102-106 A) of —Styragel columns using THF as the elution solvent. The molecular parameters of the above three polymers are listed in Table I. The copolymer, poly(GMA-co-3-CLS), contained 53.5 mole % 3-CLS and 46.5 mole % GMA, as determined by chlorine elemental analysis. The structure of the copolymer is shown in Figure 1. [Pg.242]

Fig. 28. Gel chromatograms of poly(diethylene glycol adipate) with terminal butoxyl groups, M = 700, f = 0, diethylene glycol and a ring consisting of adipic acid and diethylene glycol, M = 316 styragel columns 60, I03, 10 A, eluent tetrahydrofuran, u = 1 ml/min, volume of the sample 2 ml, refractometer, t = 24 °C... Fig. 28. Gel chromatograms of poly(diethylene glycol adipate) with terminal butoxyl groups, M = 700, f = 0, diethylene glycol and a ring consisting of adipic acid and diethylene glycol, M = 316 styragel columns 60, I03, 10 A, eluent tetrahydrofuran, u = 1 ml/min, volume of the sample 2 ml, refractometer, t = 24 °C...
Samples of resin A and resin C which were shown by TMA to be the two best MF resins were analysed by gel permeation chromatography (GPC). A Waters 515 HPLC pump and GPC system were used and the resins analysed through a Styragel HRl column (for determination of Mw between 100 and 5000) at an elution rate of 1 ml/min, after the column was calibrated with poly(ethylene glycol) (PEG). The PEG samples used for calibration had Mw of 200,300,400,600,1000,2000,3400, 8000, 10 000. Each resin sample after having been disolved in dimethylformamide was tested after filtering through a 0.45 pm filter. A Waters 410 refiractometer was used as the detector. [Pg.216]

The molecular weight was determined by gel permeation chromatography on a p-Styragel 10 column with water as the mobile phase and poly(styrene sulfonate) was used to calibrate the column. Although there is some difference between the molecular weight of the graft polymer and homopolymer, the concept that the two polymers should have relatively similar molecular weights is commonly accepted . ... [Pg.172]

Size Exclusion Chromatography (SEC) Measurements. For determination of molar mass and molar mass distribution, the samples were prepared by dissolving the purified polymer solid in HPLC grade THF. The SEC was performed in THF at 25°C on a Knauer Chromatograph equipped with styragel columns and refractive index detector at a flow rate of 1.0 ml/min. Poly(methyl methacrylate) standards from Polymer Standard Service were used for calibration. [Pg.124]

Poly(n-butyl acrylate) Chromatography Butyl acetate SEC, styragel, 70°C 3501... [Pg.1820]

Poly(M-butyl methacrylate) Chromatography Benzene SEC, styragel 1263... [Pg.1822]

Poly(cyclohexyl methacrylate) Chromatography Toluene SEC, styragel, 80°C 1180... [Pg.1822]

Poly( -octyl methacrylate) Chromatography Tetrahydrofuran SEC, styragel 2824... [Pg.1826]

Poly(mono-n-decyl itaconate) Chromatography T etrahyih oturan SEC, p-styragel 2691... [Pg.1827]

Poly(methyl 4-vinylhenzoate) Chromatography Tetrahydrofiiran SEC, styragel, 40°C 1309... [Pg.1833]

Poly(2-p-Styryl-2-OXaZOline) Chromatography Poly(/t-trimethylsilyl-a-methylstyrene) Dimethylformamide + 0.4 M triethylamine SEC, styragel, 50°C 2213... [Pg.1839]

Poly(/t-trimethylsilylstyrene) Chromatography Poly[vinyl benzyl-/j-poly(ethylene oxide)] T etrahy (i ofuran SEC, styragel 556... [Pg.1839]

Poly(diethyl fimarate) Chromatography Tetrahydrofinan SEC, styragel, 38°C 2085... [Pg.1840]

Poly(fetTOCenylethylene) Chromatography Hexametiiyl i osphormnide SEC, styragel 3025... [Pg.1840]

Poly(diisopropyl tiunarate) Chromatography T etrahydrotiiian SEC, styragel, S8X 2085... [Pg.1840]

Poly(methyl allyl fUmarate) chromatography Tetrahydrofuran SEC, styragel 3315... [Pg.1840]

Poly(acenaphthylene-a/f-methyl melhacrylate) Chromatography Tetrahydrofirran SEC, (i-styragel 168... [Pg.1842]

Poly[( 1 -acetoxymethyl)styrene-co-4-hydroxystyrene] Chromatography Tetrahydrofirran SEC, styragel 920... [Pg.1842]

Poly(a-chloroacrylate-co-methaciylonitrile) Chromatogia]diy Dimethylformamide SEC, p-styragel 562... [Pg.1845]

Poly(2-chlotoethyl vinyl ether-co-p-methoxystyrene) Chromatogia]d]y o-Dichlorobenzene SEC, styragel 1242... [Pg.1845]

Poly(4-chlorostyiene-co-chlotDprene) Chromatogtaphy Tetrahydrofuran SEC, styragel 2718... [Pg.1845]

See other pages where Styragel Poly is mentioned: [Pg.341]    [Pg.5]    [Pg.159]    [Pg.695]    [Pg.42]    [Pg.315]    [Pg.41]    [Pg.170]    [Pg.185]    [Pg.1812]    [Pg.1812]    [Pg.1812]    [Pg.1829]    [Pg.1829]    [Pg.1830]    [Pg.1833]    [Pg.1833]    [Pg.1833]    [Pg.1833]    [Pg.1833]    [Pg.1838]    [Pg.1839]    [Pg.1839]    [Pg.1842]    [Pg.1842]   
See also in sourсe #XX -- [ Pg.228 ]



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