Mathematical Modeling of Crystallization Elution Fractionation of Ethylene/1-Octene Copolymers

被引：8

作者：

Chokputtanawuttilerd, Nuttawat ^{[1
]}

Anantawaraskul, Siripon ^{[1
,2
]}

Inwong, Nantiya ^{[1
]}

Soares, Joao B. P. ^{[3
]}

机构：

[1] Kasetsart Univ, Fac Engn, Dept Chem Engn, Ctr Excellence Petr Petrochem & Adv Mat PPAM, Bangkok 10900, Thailand

[2] Kasetsart Univ, Ctr Adv Studies Nanotechnol & Its Applicat Chem F, Bangkok 10900, Thailand

[3] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2015年 / 216卷 / 06期

关键词：

chemical composition distribution; crystallization elution fractionation; ethylene; 1-olefin copolymers; modeling; polyethylene; SITE-TYPE CATALYSTS; DYNAMIC CRYSTALLIZATION; CRYSTAF; POLYETHYLENE; SEQUENCE; KINETICS; FLOW;

D O I：

10.1002/macp.201400518

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Crystallization elution fractionation (CEF) is a relatively new polyolefin characterization technique used to estimate the chemical composition distribution (CCD) of semicrystalline copolymers. CEF is developed to enhance the resolution and reduce the analysis time of temperature rising elution fractionation (TREF) by separating polymer samples in both the crystallization and elution steps. A model based on the concept of population balance, crystallization/dissolution kinetics, and dispersion model is developed to understand the CEF fractionation mechanisms. The proposed CEF model is found to describe well the experimental CEF profiles of a series of ethylene/1-octene copolymers with different comonomer contents.

引用

页码：621 / 635

页数：15

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