Extended and threefold helical conformations in gels of isotactic polystyrene
โ Scribed by P. R. Sundararajan; N. Tyrer; T. Bluhm
- Publisher
- Springer
- Year
- 1982
- Tongue
- English
- Weight
- 381 KB
- Volume
- 6-6
- Category
- Article
- ISSN
- 0170-0839
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๐ SIMILAR VOLUMES
## Abstract Summary: The vast majority of headโtoโtail stereoregular crystallizable polymers with an isotactic structure generally assume a helical symmetry in the crystalline state, compatible with the regular repetition along the chain axis of isomorphous isoclined units. There are at least two c
## Abstract The gelation behavior of the tripleโhelical polysaccharide lentinan fractions having different molecular weights in water at 25ยฐC were studied by using a rheometer. The analysis of concentration and molecular weight dependence of shear stress and shear viscosity showed that aqueous lent
## Abstract The ternary Cu^II^ complexes [Cu(D,Lโphe)(bpy)]ยท(ClO~4~) (1), [Cu(D,Lโphe)(phen)(H~2~O)]ยทClO~4~ยทH~2~O (2), and [Cu(Lโphe)(bpy)(H~2~O)]ยทClO~4~ยทH~2~O (3) (bpy = 2,2โฒโbipyridine, phen = 1,10โphenanthroline) adopt helical structures in the crystal state, as determined by an Xโray structural