High-temperature gradient HPLC for the separation of polyethylene-polypropylene blends

被引：53
作者：
Heinz, LC [1 ]
Pasch, H [1 ]
机构：
[1] Deutsch Kunststoff Inst Darmstadt, German Inst Polymers, D-64289 Darmstadt, Germany
来源：
POLYMER | 2005年 / 46卷 / 26期
关键词：
high performance liquid chromatography; blends; polyethylene;
D O I：
10.1016/j.polymer.2005.11.001
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 high-temperature gradient HPLC method has been developed for the analysis of polyethylene-polypropylene blends. For the first time it was possible to separate these polyolefin blends by a chromatographic technique which is operating at 140 degrees C. Blends of a commercial polypropylene and a medium molar mass linear polyethylene were separated using a mobile phase of ethylene glycol monobutylether (EGMBE) and 1,2,4-trichlorobenzene (TCB) and silica gel as the stationary phase. With the use of n-decanol as sample solvent, a precipitation-redissolution mechanism for polyethylene (PE) was established while polypropylene (PP) is eluted in size exclusion mode. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：12040 / 12045
页数：6
相关论文
共 47 条
[1]  
Arnal M., 1998, ANN TECH C P SOC PLA, P2007
[2]   FRACTIONATION AND CHARACTERIZATION OF LINEAR LOW-DENSITY POLYETHYLENE AT A LOWER CRITICAL SOLUTION TEMPERATURE (LCST) [J].
BARBALATA, A ;
BOHOSSIAN, T ;
DELMAS, G .
JOURNAL OF APPLIED POLYMER SCIENCE, 1992, 46 (03) :411-420
[3]  
Bartkowiak A, 1998, J APPL POLYM SCI, V69, P2549, DOI 10.1002/(SICI)1097-4628(19980926)69:13<2549::AID-APP4>3.0.CO
[4]  
2-A
[5]   Coupled liquid chromatographic techniques for the separation of complex polymers [J].
Berek, D .
PROGRESS IN POLYMER SCIENCE, 2000, 25 (07) :873-908
[6]  
Brandrup J., 1999, Polymer handbook, VII
[7]  
Brüll R, 2002, MACROMOL SYMP, V178, P81, DOI 10.1002/1521-3900(200202)178:1<81::AID-MASY81>3.0.CO
[8]  
2-Z
[9]  
CANTOW HJ, 1968, KAUT GUMMI KUNSTST, V21, P609
[10]   Recent advances in liquid chromatography analysis of synthetic polymers [J].
Chang, TY .
LIQUID CHROMATOGRAPHY FTIR MICROSPECTROSCOPY MICROWAVE ASSISTED SYNTHESIS, 2003, 163 :1-60
12345