Blue Vinyl

In Nick Broomfield s Kurt Gourtney, a film about the death of rock star Kurt Cobain that paints an unflattering portrait of his widow, Courtney Love, Broomfield (like Herzog) makes himself and his quest to make the film the story of the film. But the style is noticeably different Broomfield, much like Judith Helfand in Blue Vinyl and Michael Moore in Bowling for Columbine, is confrontational, in a style somewhat akin to televised investigative journalism. 

Before shooting, look at films that contain interviews and decide what you like or don t like about an approach and what you want to do in your own film. Do you plan to appear on camera along with your interviewees, as Judith Helfand did in Blue Vinyll Do you want your interviewees to appear to be addressing the audience directly Do you want to take a less formal approach to interviewing, asking your subjects questions as they go about their lives or filming them as they discuss specific subjects with each other ... 

Blue Vinyl Produced by Daniel B. Gold, Judith Helfand, and Julia D. Parker direrted by Judith Helfand and Daniel B. Gold edited by Sari Gilman. 

PuUy hydroly2ed poly(vinyl alcohol) and iodine form a complex that exhibits a characteristic blue color similar to that formed by iodine and starch (171—173). The color of the complex can be enhanced by the addition of boric acid to the solution consisting of iodine and potassium iodide. This affords a good calorimetric method for the deterrnination of poly(vinyl alcohol). Color intensity of the complex is effected by molecular weight, degree of... 

For Reactive Blue 19 [2580-78-1] (Cl 61200 its reactive form, the vinyl sulfone (5), was found in the effluents of a textile mill and a wastewater treatment plant. The hydrolysis product of the vinyl sulfone was detected only in the effluent of the textile mill (257). 

Figure 8.2 The structure of a secondary vinylic carbocation. The cationic carbon atom is sp-hybridized and has a vacant p orbital perpendicular to the plane of the tt bond orbitals. Only one R group is attached to the positively charged carbon rather than two, as in a secondary alkyl carbocation. The electrostatic potential map shows that the most positive (blue) regions coincide with lobes of the vacant p orbital and are perpendicular to the most negative (red) regions associated with the ir bond.

I The C2 vinylic proton signal (blue) appears at 6.73 8 and shows an interesting four-line absorption pattern. It is coupled to the two nonequivalent protons at Cl and C3 with two different coupling constants /. 2 6 Hz and /2.3 - 12 Hz. 

The monomers used in chain polymerisations are unsaturated, sometimes referred to as vinyl monomers. In order to carry out such polymerisations a small trace of an initiator material is required. These substances readily fragment into free radicals either when heated or when irradiated with electromagnetic radiation from around or just beyond the blue end of the spectrum. The two most commonly used free radical initiators for these reactions are benzoyl peroxide and azobisisobutyronitrile (usually abbreviated to AIBN). They react as indicated in Reactions 2.1 and 2.2. 

Release of tetracycUne hydrochloride from PCL fibers was evaluated as a means of controlled administration to periodontal pockets (69). Only small amounts of the drug were released rapidly in vitro or in vivo, and poly(ethylene-co-vinyl acetate) gave superior results. Because Fickian diffusion of an ionic hydrochloride salt in a UpophiUc polymer is unlikely, and because PCL and EVA have essentially identical Fickian permeabilities, we attribute this result to leaching of the charged salt by a mechanism similar to release of proteins from EVA (73). Poly-e-caprolactone pellets have been found unsuitable for the release of methylene blue, another ionic species (74,75). In this case, blending PCL with polyvinyl alcohol (75% hydrolyzed) increased the release rate. 

Same as arylamine DSA derivatives used as guest materials in blue OLEDs, Geise et al. synthesized a series of alkyloxy-substituted biphenyl vinyl compounds as dopant materials [236]. These authors studied OLEDs fabricated using PVK as a host polymer and holetransporting PBD as a codopant with a PLED structure of ITO/PEDOT-PSS/PVK 230VBP PBD/LiF/Al, which gave an optimized QE of 0.7% and brightness of 1600 cd/m2 at 100 mA/cm2 with emission peak at 450 nm. 

SCHEME 3.61 Chemical structures of oligo-phenyl vinyl blue emitters. 

Complexes with Iodine. One of the simplest "reactions" of poly(vinyl alcohol) is the formation of a blue complex with iodine. This complex formation, which requires the presence of KI, has been studied extensively by many workers (26-31). This complex also forms with partially hydrolyzed poly(vinyl acetates) (26) and is known to be affected by the 1,2-glycol content and the isotacticity of the polymer both of which tend to reduce complex formation (31). The complex also depends on the molecular weight of the poly(vinyl alcohol) and the iodine concentration. 

Dry liquid ammonia (1.2 1) is placed in the flask after which lithium (1.0 mol, 7.0 g, freshly cut in pieces of -0.5 g) is introduced. After stirring for 15 min, ethyl vinyl sulfide [1, 233] is added dropwise over 30 min. Qose to the stoichiometricai amount of 0.50 mol is needed to course a complete disappearance of the blue colour. The dropping funnel is then replaced with... 

C j 4 alkyl group) 0.5—8.0%, and binder 15—45%. The binder contains 15—45% polymeric material, such as poly (vinyl acetate) or polyfvinyl chloride) with the lower alkyl esters of NC and 65— 85% oxygenated hydrocarbon plasticizers (such as lower alkylene glycols their oxalates, maleates, diglycolates or nitrodiphenyl ethers, etc). E.g. AN 78, Prussian Blue 3, N-amino-alkylmorpholine 3) binder 12, carbon black 3 MgO I%]... 

Farid and co-workers88 have investigated the effect of a glassy polymer host on the spectral position of the excimer emission peak produced by high concentrations of the compound methyl 4-(l-pyrenyl)-butyrate. The excimer peak position in a glassy polymer host was compared to the peak position in fluid solution for the following polymer hosts (and solvents) PS(toluene), PMMA(methyl isobutyrate), and poly-(vinyl benzoate) (methyl benzoate). The excimer emission peak of the pyrene compound in all three solvents occurred at about 20,800 cm-1, but the emission peak in all three polymer hosts was blue-shifted about 1900 cm-1 relative to the solution value. This is in contrast to the behavior of unsubstituted pyrene in PMMA 82) and PS 83), whose excimer peak does not shift from the solution value. 

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