Splitting width

The plot of the splitting width h versus 1/T is shown in fig.10, in which the broken line shows the 

It was found that the cholesteric pitch appeares again at higher temperature, and chilarity at higher temperature is opposed to that at lower temperature region, as shown in fig.14. The sign of ORD of films cast 

The sense of cholesteric twist, in the liquid crystal of PBLG in dioxane, is opposed to that in CH Cl, as pointed out by Robinson. We measured the cholesteric pitch of PBLG in various mixed solvent systems, and estimated the sense of cholesteric twist in the individual solvent. If two solvents which make the sense of cholesteric twist of PBLG opposite to each other, are mixed, the cholesteric pitch of PBLG in mixed solvent will diverge at the critical composition. It is found that the sense of cholesteric twist of PBLG in dioxane and chloroform is opposite to that in dichloromethane, dichloroethane and benzene. 

The dependence of nematic temperature on the size of solvents is illustrated in fig. 15. The largest interatomic distances of the solvent molecules are taken as their sizes. The larger the solvent molecule, the higher is the nematic temperature in general. Further, the solvents which have dipole moment parallel to the long axis depress nematic temperature and others which have dipole moment perpendicular to it, elevate T.  

the behavior of poly-y-buty1-L-glutamate ( PBuLG ) in CHClo represents an analogous behavior to PBLG, i.e. 1/S decreases linearly with temperature. 

---

Specimen Isomer Shift Quadrupole Splitting Width eff... 

Figure 5.5 Dependence of (a) the splitting width and (b) the single band component fraction estimated for the CH2 rocking bands on the H chain fraction in the DHDPE/LLDPE(2) blends and in the blend of n-C3oH62/n-C3oD62- (From Reference 46 with permission from the Society of Polymer Science, Japan.)...

Band splitting width of infinitely repeated array of oscillators... 

Relationship Between the Experimental Luminescence Wavelength and the Energy Splitting Width... 

Fig. 5.6. Hyperfine splitting width due to p- and y-protons and line widths at various temperatures...

The temperature dependence of the hyperfine splitting width due to P-protons of alkyl radicals shows much of a mobile character in the case of the polyethylene chain in UPEC than in the case of bulk systems, as shown in Sect. 5 and vibration appears to occur around the chain axis since data analysis suggested vibrational motion of methylene groups. 

Fig. 8J. Comparison of the distributions of correlation time obtained from NMR line width, O, ESR line width , and difference in hyperfme splitting width , assuming 10 kcal/mol (42 kJ/mol) of the activation energy (Ref. )...

Since the Af is proportional to the infrared absorbance A, the LO-TO splitting width is proportional to the oscillator strength A/wn>- In fact, the observed bands were found lo satisfy this relation reasonably. 

Figure 5.23 Infrared spectra measured for a series of the blend samples between the deuter-ated high density polyethylene and the linear low density polyethylene. Doublets were observed for D/H = 0/100 and 100/0 samples. As the blending ratio was changed, the splitting width of the bands became smaller and merged into a singlet for the dilute blend samples. These phenomena can be interpreted by assuming that the D and H chain stems are statistically randomly distributed in the crystal lattice [3].

At —70.6°C, the exchange rate k and populations Pj and Pj related to the proton tautomerism were obtained. The intrinsic splitting width Av" was then calculated by using the equilibrium constant Kj- and the chemical shift difference Au (Hz) at —70.6°C, a temperature at which the prototropic tautomerism is still fast on the NMR timescale [12]. 

---