Time-Resolved Small Angle Laser Light Scattering Apparatus

Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (5): 800.

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Time-Resolved Small Angle Laser Light Scattering Apparatus

ZHANG Jian-Wen¹, YAN Dong¹, ZHOU Hong-Wei¹, YANG Yu-Liang²

1. Department of Macromolecular Science; Laboratory of Molecular Engineering of Polymer of Education Comission of China, Fudan University, Shanghai 200433;
2. Department of Macronroletular Scienre, Laboratory of Molecular Engineering of Polymer of Education Comission of China, Fudan Universityr Institute of Chemistry, Academia Sinica

Received:1995-05-31 Online:1996-05-24 Published:1996-05-24

Abstract

Abstract: In this paper,a time-resolved small angle laser light scattering(SALS)apparatus has been described.In this apparatus,a two-dimensional CCDcamera has been used as a detector, then the intensity of the scattered light is converted to the digital signals and stored in the computer or in a video recorder for further data analysis.As a demonstration, the SALSpattern of polypropylene spherulite has been recorded and the data are presented in ways of grayed picture,three-demensional stack plot and contour plot.To show the feasibility of studying the dynamics of phase separation,the time evolution of light scattering during the cure-induced spinodial deconposition of an epoxy composite has been recorded.

Key words: Time-resolved light scattering, Dynamics of phase separation, Light scattering of spherulite, Epoxy resin

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ZHANG Jian-Wen, YAN Dong, ZHOU Hong-Wei, YANG Yu-Liang. Time-Resolved Small Angle Laser Light Scattering Apparatus[J]. Chem. J. Chinese Universities, 1996, 17(5): 800.

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Time-Resolved Small Angle Laser Light Scattering Apparatus

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