کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5200021 1381574 1992 3 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Aggregation in solutions of poly(γ-benzyl-l-glutamate) monitored by static and dynamic light scattering
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Aggregation in solutions of poly(γ-benzyl-l-glutamate) monitored by static and dynamic light scattering
چکیده انگلیسی
We have studied dilute and semidilute solutions of poly(γ-benzyl-l-glutamate) in 1,2-dichloroethane by static and dynamic light scattering. The aggregational behaviour of the semiflexible polymer is evidenced in both static and dynamic scattering, and is sensitive to the temperature and the polypeptide molecular weight. In particular, both the reciprocal specific scattering intensity and the effective decay rate of the dynamic correlations exhibit a minimum as a function of the concentration. The slope of effective diffusion coefficient versus the square of the scattering vector displays an anomalous maximum as a function of the concentration which can also be attributed to aggregation. The experimental evidence is compatible with head-to-tail dimerization of the polymer as the concentration increases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 33, Issue 24, 1992, Pages 5328-5330
نویسندگان
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