Thermal studies on polythiophene containing mesogenic side chains

Order, disorder and stretching of a smectic elastomer with ‘side-on’ mesogenic side groups

We report an X-ray study of the order in a ‘side-on’ smectic-A elastomer in which both the polymer backbone and the mesogenic side groups are, on average, parallel to the smectic layer normal. The present system shows in all phases locally correlated structures as evidenced by systematic diffuse scattering at small angles, attributed to the fluorinated end groups of the mesogens. The elastomer ...

Serological Studies on Azoproteins Antigens Containing Azocomponents with Aliphatic Side

The first studies in this series included only simple aromatic amino compounds. An extension of the investigation to aliphatic substances, such as tartaric acid (1), pepfides (2) and carbohydrates (3, 4), was made possible by the expedient of combining them to aromatic amines to form diazotizable compounds which could be linked to protein. Since simple aliphatic compounds have not been examined...

Transition Metal Complexes of Peptide Derivatives Containing Chelating Side Chains

Engineered Ionizable Side Chains.

One of the great challenges of mechanistic ion-channel biology is to obtain structural information from well-defined functional states. In the case of neurotransmitter-gated ion channels, the open-channel conformation is particularly elusive owing to its transient nature and brief mean lifetime. In this Chapter, we show how the analysis of single-channel currents recorded from mutants engineere...

Birefringence Properties and Surface Relief Grating Formation on Methylacrylate Polymers with Photochromic Side Chains

We have studied light-induced birefringence (LIB) and surface relief grating (SRG) formation in the series of methylacrylate polymers. The effect of material structure such as length of photochromic side chain, glass transition temperature and molecular structure of azo units on LIB and SRG are studied. The optical formation of self-induced SRG on films of these materials is also presented.