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.

引用

页数：8

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