✦ LIBER ✦

Study on the determination of the molecular weight of polyethylene with ultrahigh temperature GPC

✍ Scribed by Jian Xu; Peijun Ji; Jinshen Wu; Meiling Ye; Lianghe Shi; Chun Wan

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 314 KB
Volume: 19
Category: Article
ISSN: 1022-1336
DOI: 10.1002/(sici)1521-3927(19980201)19:2<115::aid-marc115>3.0.co;2-f

No coin nor oath required. For personal study only.

✦ Synopsis

Ultrahigh or high molecular weights of polyethylenes (PE) and their distributions are for the first time determined at 160" or 170°C by gel permeation chromatography (GPC). The thermostability of PE at high temperatures is discussed. In order to calculate the real molecular weight of PE, a new calibration curve is established. For PE with high molecular weight more reliable and accurate results can be obtained by GPC measurements at these temperatures. The application of ultrahigh temperature GPC for polymer characterization is demonstrated in this paper.

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