Abstract
By combining the offline static and dynamic laser light scattering (LLS) and gel permeation chromatography (GPC) results of a broadly distributed polymer sample, we were able to characterize a series of chiral binaphthyl-based polyarylenes and poly(aryleneethnylene)s in THF at 25°C. For each of the samples, we obtained not only the weight-average molar mass Mw, the second virial coefficient A2 and the z-average translational diffusion coefficient ,D., but also two calibrations: V 5 A 1 Blog(M) and D 5 kD M 2a D , where V, D, and M are the elution volume, the transla- tional diffusion coefficient and the molar mass for monodisperse polymer chains, re- spectively, and A, B, kD, and aD are four calibration constants. Using these calibrations, we estimated the molar mass distributions of these novel polymers. We showed that using polystyrene to calibrate the GPC columns could lead to a smaller Mw. Our results indicate that all the polymers studied have a rigid chain conformation in THF at 25°C and the introduction of the —NO2 groups into the monomer can greatly promote the polymer solubility in THF. © 1998 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 36: 2615-2622, 1998
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Polymer Science Part B: Polymer Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.