Poly p-chlorostyrene

Peak Notation Assignment of Main Peaks Molecular Weight Retention Index Relative Intensity 

3) Bertini, F. Audisio, G. Kiji, J. J. Anal. Appl Pyrolysis 1994, 28, 205. 

4 -(hex-5-ene-1,3,5-trlyl) d 4,4 -(hexa-1,5-diene-2,5-dlyl)bis(chlorobenzene) tris(chlorobenzene) (trlmer) 

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Figure 5 is an ORTEP computer plot of the first 50 backbone carbons in a typical chain. Only the fluorine atoms of the sidechains are shown. The various hard sphere exclusions conspire dramatically to keep the fluorines well separated and the chain highly extended even without introducing any external perturbations. The characteristic ratio from the computer calculations is about 11.6 from data for poly(p-chlorostyrene), CR = I l.l, poly(p-bromostyrene), CR = 12.3, and poly(styrene), CR = 10.3 (all in toluene at 30°C), we expect the experimental value for the fluoro-polymer to be in the range of 10 to 12. 

Figure 37. The effect of change in molecular weight at constant dispersity on the e-beam sensitivity of poly(p-chlorostyrene). The very high contrast was achieved by fractionating to obtain nearly monodispersed samples.

Preparation of Octa-Arm Poly(p-chlorostyrene-b-isobutylene) Stars... 

Mutually compatible polymers are relatively rare [84,85], A typical phase diagram of two incompatible polymers and a common solvent is that determined by Kern for the polystyrene - poly(p - chlorostyrene) - benzene system shown in the Fig. 1.11 [86],... 

PPA PpBrS PpCIS PPeMA PPFE poly(n-propyl acrylate) poly(p-bromostyrene) poly(p-chlorostyrene) poly(n-pentyl methacrylate) polylperfluoro ethers)... 

Figure 35. Zero-field mobility [p) for hole transport in TTA (40 wt. /i)-doped polystyrene (above) and poly(p-chlorostyrene) (below), shown as functions of temperature T, plotted as T ). (Reprinted with permission from Ref. [55a).)...

The validity of this dynamic model can be justified by the fact that in polystyrene and other carbon-chain polymers of the type (—CH2—CHR—) (poly(p-chlorostyrene), poly(methyl acrylate) or poly(vinyl acetate)), containing no methyl groups bonded directly to the main chain, rotational isomerization with 17 5—6 Kcal/mol (in the time interval of r 10 — 10 s in solvents with ij 0.01 P) can occur ... 

Figure 6,4,1. Result for a Py-GC/MS analysis of poly(p-chlorostyrene). Pyrolysis done at 600° C in He, with the separation on a Carbowax type column.

Table 6,4,2. Compounds identified in the pyrogram of poly(p-chlorostyrene) as shown in Figure 6.4.1.

Poly(p-chlorostyrene) is polar and therefore is not suitable as an electrical insulator. Polyethylene, on the other hand, is nonpolar and wiU not conduct electricity. 

TA2 Tager, A.A. and Ikanina, T.V., Thermodynamic study of dilute and concentrated solutions of poly(p-chlorostyrene) (Russ.), Vysokomol. Soedin., Ser. B, 19, 192,... 

GA Ogawa, E., Yamaguchi, N., and Shima, M., Estimation of the interaction parameter between polystyrene and poly(p-chlorostyrene) from osmotic pressure measurements, Polym. J., 18, 903, 1986. 

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