Light-scattering measurements were performed for a number of poly-7-benzyl-Lglutamate (PBLG) samples in dimethylformamide (DMF) and in chloroform-formamide (C-F) a t 25°C. Osmotic pressure data for some of these polypeptide samples in DMF a t 37°C. were also determined. The scattering radii (S2)'/I
Phase separation of poly(γ-benzyl L-glutamate) to liquid crystal and isotropic solution in various helicogenic solvents
✍ Scribed by R. Sakamoto
- Publisher
- Springer
- Year
- 1984
- Weight
- 638 KB
- Volume
- 262
- Category
- Article
- ISSN
- 0340-255X
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## Abstract The Zimm–Bragg parameters __s__ and σ were determined for poly(γ‐benzyl L‐glutamate) (PBLG) in __m__‐cresol and in dimethylformamide (DMF) from ORD data as a function of molecular weight. It was found that, within the temperature range between 10 and 55°C and on the average, __s__ = 1.6
## Abstract Reduced viscosity and infrared spectra of low‐molecular‐weight poly‐γ‐benzyl‐L‐glutamate (which was prepared by polymerization of the __N__‐carboxyanhydride with __n__‐hexylamine initiation at [A]/[I] 3, 4, and 8) have been measured in various organic solvents. Infrared spectra indicate
The fluorescence anisotropy ratios, r, of An-PBLG [poly(y-benzyl-I~-glutamate) with anthracene group] were measured over wide concentration regions for several solution systems. At certain concentrations of An-PBLGs, the values of r became nearly zero, corresponding to the transition of solution to
The emission anisotropies of PBLG-RhB [rhodamine B chemically bound to the terminal amino group of poly(7-benzyl L-glutamate)] have been measured in a semi-concentrated solution of PBLG. The results show that the extent of the aggregation behaviour of PBLG gradually increases with increasing concent