AN INSTRUMENT FOR MEASURING RETARDATION TIMES OF DEOXYRIBONUCLEIC ACID SOLUTIONS

被引：52

作者：

CHAPMAN, RE

KLOTZ, LC

THOMPSON, DS

ZIMM, BH

机构：

[1] Department of Chemistry (Revelle College), University of California, San Diego, La Jolla

来源：

MACROMOLECULES | 1969年 / 2卷 / 06期

关键词：

D O I：

10.1021/ma60012a015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new instrument is described which measures retardation times for solutions of very large macromolecules in a creep-recovery type of experiment. Retardation times are closely related to relaxation times, and therefore should be useful parameters for determining molecular weights of macromolecules. Results of measurements on solutions of T2 bacteriophage DNA are presented. The molecular weights calculated by assuming that the DNA molecules are random coils agree well with the accepted value. © 1969, American Chemical Society. All rights reserved.

引用

页码：637 / &

共 14 条

[1]

ALFREY T, 1948, MECHANICAL BEHAVIOR

[2] VISCOSITY SEDIMENTATION ET CETERA OF RING- AND STRAIGHT-CHAIN POLYMERS IN DILUTE SOLUTION [J].