Laser Light Scattering Technique: A Powerful Tool in Polymer Science
Dr. Muhammad SIDDIQ
Professor of Physical chemistry, Department of Chemistry
Quaid-i-azam University, Pakistan
2019年8月26日(August 26, 2019)
上午10:00 ‒ 11:00(10:00~11:00 am)
资源环境楼939会议室(Room 939, R&E Building)
1985Gomal University, Pakistan, Master of Science
1996.06, Chemistry Department, Chinese University of Hong Kong, Ph. D.
Research concerned: Polymer Physics; Polymer solution; Polymer hydrogel Honor: Award of Gold Medal in M Sc Chemistry; Nominated for Civil Award by the Ministry of Sci & Tech
Laser light scattering (LLS) is an absolute technique and used extensively in polymer science. From static laser light scattering (SLS), the molar mass, radius of gyration and second virial coefficient of polymer chain and colloid particle can be obtained. From dynamic laser light scattering (DLS), the distribution of translation diffusion coefficient G(D) and then average hydrodynamic radius (Rh) of polymer chain and colloid particle can be achieved. By the combination of SLS and DLS, the conformational/relaxation information of polymer chain and the association/aggregation behavior of polymer assemblies can be further acquired. Therefore, LLS technique has been successfully adopted to investigate in the areas of polymer solution/colloid, polymer self-assembly, stimuli-responsive polymer and micro/nano-gel. In this lecture, the principle of LLS and fascinating examples are presented.