DETERMINATION OF THE COMPOSITION OF COMMON LINEAR LOW-DENSITY POLYETHYLENE COPOLYMERS BY C-13-NMR SPECTROSCOPY

被引：156

作者：

DEPOOTER, M

SMITH, PB

DOHRER, KK

BENNETT, KF

MEADOWS, MD

SMITH, CG

SCHOUWENAARS, HP

GEERARDS, RA

机构：

[1] DOW CHEM CO USA,ANALYT SCI,MIDLAND,MI 48667

[2] DOW CHEM CO USA,DEPT ANALYT DEV,TERNEUZEN,NETHERLANDS

[3] DOW CHEM CO USA,ANALYT SERV,FREEPORT,TX 77541

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 02期

关键词：

D O I：

10.1002/app.1991.070420212

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 comprehensive C-13-NMR method for the analysis of composition in the most common commercial polyethylene copolymers has been established. The method covers ethene copolymers with propene, butene-1, hexene-1, octene-1, and 4-methyl pentene-1 in the compositon range of 1-10 mol %. The chemical shift assignments and T1 values of the resonances of the copolymers are presented. Results of precision studies and interlaboratory analyses showed that the molar composition could be determined with a relative precision at 2-sigma of about 6%. This method is being proposed to ASTM as Method X70-8605-2.

引用

页码：399 / 408

页数：10

共 9 条

[1] QUANTITATIVE-ANALYSIS OF LOW-DENSITY (BRANCHED) POLYETHYLENES BY C-13 FOURIER-TRANSFORM NUCLEAR MAGNETIC-RESONANCE AT 67.9-MHZ [J].