A NEW GENERATION OF LIGHT SCATTERING DEVICE WITH REAL TIME DATA ANALYSIS FOR RHEO-OPTICAL MEASUREMENTS

被引：3
|
作者：
Arora, Deepak [1 ]
Nandi, Souvik [2 ]
Winter, H. Henning [1 ,2 ]
机构：
[1] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
[2] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA
来源：
APPLIED RHEOLOGY | 2011年 / 21卷 / 04期
关键词：
rheology; light scattering; transmission intensity measurements; liquid crystal polarization rotator; FLOW-INDUCED CRYSTALLIZATION; MOLECULAR-WEIGHT; ISOTACTIC POLYPROPYLENE; POLYMORPHISM; RHEOLOGY;
D O I：
10.3933/ApplRheol-21-42633
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An apparatus for small angle light scattering (SALS) and light transmission measurements under shear was built and tested at the University of Massachusetts Amherst. As a new development, the polarization direction can be rotated by a liquid crystal polarization rotator (LCPR) with a short response time of about 20 ms. The experiments were controlled and analyzed with a LabVIEW (TM) based code (LabVIEW (TM) 7.1) in real time. Quiescent and flow-induced crystallization experiments on isotactic poly-1-butene (iPB) were conducted to demonstrate the instrument and software capabilities. Software was designed with a modular approach, so that further modules can be added to investigate other systems such as polymer blends, colloidal suspensions, solutions with droplets etc. A replica of the SALS apparatus was custom built for ExxonMobil Research in Clinton NJ.
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页数：8
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