Determination of the Molecular Weight Distribution by Diffusion Measurement
نویسندگان
چکیده
منابع مشابه
Determination of the Molecular Weight Distribution of Chondroitin Sulfate B by Sedimentation Equilibrium.
The discovery that purified protein preparations consist of molecules which are monodisperse with respect to molecular weight was originally entirely unexpected (1). Polymerization processes in general are expected to yield products which contain molecules with a wide range of molecular size, and only a template mechanism of synthesis can reasonably be expected to yield size homogeneity. It is ...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولstudy of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
Determination of nanoparticle size distribution together with density or molecular weight by 2D analytical ultracentrifugation
Nanoparticles are finding many research and industrial applications, yet their characterization remains a challenge. Their cores are often polydisperse and coated by a stabilizing shell that varies in size and composition. No single technique can characterize both the size distribution and the nature of the shell. Advances in analytical ultracentrifugation allow for the extraction of the sedime...
متن کاملThe Use of Gauss-hermite Quadrature in the Determination of the Molecular Weight Distribution of Linear Polymers by Rheometry
The molecular weight distribution (MWD) and its parameters are of the fundamental importance in the characterization of polymers. Therefore, the development of techniques for faster MWD determination is a relevant issue. This paper aims at implementing one of the relaxation models from double reptation theory proposed in the literature and analyzing the numeric strategy for the evaluation of th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1972
ISSN: 2185-0925,0369-4577
DOI: 10.1246/nikkashi.1972.1172