SOLUTION PROPERTIES OF POLYTRIMETHYLHEXAMETHYLENTEREPHTHALAMIDE (TROGAMID T)

被引：9

作者：

HEROLD, J ^{[1
]}

MEYERHOFF, G ^{[1
]}

机构：

[1] CHEM & PHYS MACROMOLEC,MAINZ,FED REP GER

来源：

EUROPEAN POLYMER JOURNAL | 1979年 / 15卷 / 06期

关键词：

D O I：

10.1016/0014-3057(79)90070-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

For the polyamide Trogamid TR, good as well as θ-solvents are available. Determinations of molecular weights by ultracentrifugation, light scattering, osmometry, viscometry and gelchromatography (GPC) are reported. For DMF at 25° the relation [η] = 0.02737 M0.706w cm3 g-1 was established, [η] = f(T) shows a maximum between - 70° and + 120°. θ-temperatures are 142° for aniline and 62° for pyrroline, the latter having a negative temperature gradient. The unperturbed dimensions are calculated from the viscosity in θ-solvents and in DMF; for the latter, the Stockmayer-Fixman extrapolation was used. Molecular dimensions proved to be small in comparison with those of similar polymers. This effect is due to the three methyl side-groups for each chain unit sterically preventing a more stretched conformation. © 1979.

引用

页码：525 / 532

页数：8

共 25 条

[1]

[Anonymous], 1963, J POLYM SCI C, DOI [DOI 10.1002/POLC.5070010109, 10.1002/polc.5070010109]

[2] A DEMONSTRATION OF SOME NEW METHODS OF DETERMINING MOLECULAR WEIGHTS FROM THE DATA OF THE ULTRACENTRIFUGE [J].