Aryliminodimagnesium Reagents. XV. Condensation with Nitrobenzene. Formation of Unsymmetrical Azobenzenes Favored by Long-Chainp-Alkoxy-Substituted Reagents
A composition includes an isomerized polymer containing a structural unit containing an isomerized structure and an isomerized low molecular weight compound, the composition being fluidized by light irradiation from a solid state and being reversibly non-fluidized.
The present invention provides means for improving the softening rate in photoirradiation and image fixation property.
The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), R
1
to R
10
in the following are groups defined in claim
1.
The present invention provides means for improving the softening rate in photoirradiation and image fixation property.
The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), R1 to R10 in the following are groups defined in claim 1.
A dopant-induced anomalous increase in the helical pitch of dicholesteryl 10,12-docosadiynedioate 1 is explained by generation of smectic clusters in the cholesteric phase where the dopants act as promoters of smectic domains. The dopants, having a mesogenic core and the proper length of alkyl chains on both their molecular sides, such as 4,4'-dialkylazobenzenes, 4,4'-dialkylazoxybenzenes and 4,4'-dialkylbiphenyls, considerably increase the pitch. However, dopants having benzene or a binaphthyl structure in the molecular center, an alkyl chain at one side of the molecules and Z-isomers of azobenzene and azoxybenzene derivatives, slightly decrease the pitch by acting as impurities that decrease the transition temperature of the host. An X-ray diffraction study of the cholesterics revealed that the pitch increases with an increase in size and amount of the smectic domains induced by the appropriate dopants.