GPC Separation of High Molecular Weight Polyacrylamide.

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthesis of high molecular weight polyethylene using FI catalyst

A FI Zr-based catalyst of bis[N-(3,5-dicumylsalicylidene)-2′,6′­diisopropylanilinato]zirconium(IV) dichloride was prepared and used for polymerization of ethylene. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature up to 35 oC were favorable for catalyst/MAO to raise the catalytic activity as...

متن کامل

The fractionation of high-molecular-weight ribonucleic acid by polyacrylamide-gel electrophoresis.

1. Gels were prepared with recrystallized acrylamide and bisacrylamide. Electrophoresis was in tris-sodium acetate-EDTA buffer for 0.5 to 3hr. Gels were scanned at 280 or 265mmu. Techniques are described for slicing and radioactive counting. 2. The mobility of RNA was inversely related to the sedimentation coefficient and varied with gel concentration. Electrophoresis in 2.2-2.6% gels gives a f...

متن کامل

Polyacrylamide gel analysis of high molecular weight ribonucleic Acid from etiolated and green cucumber cotyledons.

Cucumis sativus L. seeds and 5-day-old dark-grown cotyledons contain 25 and 18 S cytoplasmic ribosomal RNAs as main components. The major increase in nucleic acid content in both green and etiolated cotyledons occurs between days 5 and 7 of germination. This increase is characterized by an important synthesis of 23 and 16 S plastid (chloroplast and proplastid) ribosomal RNAs. Proplastid RNA syn...

متن کامل

Observations on molecular weight determinations on polyacrylamide gel.

1. A simple internal calibration technique was used to construct accurate molecular weight-mobility prof?les on polyacrylamide gels with well characterized proteins, and the existence of a “critical point” was observed for small polypeptides. The useful size range limits were determined for several gel concentrations. Apparent molecular weights generally fell within 5 to 6% of literature values...

متن کامل

Analysis of Bacterial and Archaeal Communities along a High-Molecular-Weight Polyacrylamide Transportation Pipeline System in an Oil Field

Viscosity loss of high-molecular-weight partially hydrolyzed polyacrylamide (HPAM) solution was observed in a water injection pipeline before being injected into subterranean oil wells. In order to investigate the possible involvement of microorganisms in HPAM viscosity loss, both bacterial and archaeal community compositions of four samples collected from different points of the transportation...

متن کامل

ذخیره 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: KOBUNSHI RONBUNSHU

سال: 1992

ISSN: 0386-2186,1881-5685

DOI: 10.1295/koron.49.467