The Debye light scattering equation’s scaling relation reveals the purity of synthetic dendrimers

Tseng, Hui Yu; Chen, Hsiao Ping; Tang, Yi Hsuan; Chen, Hui Ting; Kao, Ching Huei; Wang, Shau Chun

doi:10.1007/s11051-016-3356-7

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“…The scattered light intensity was measured at the angles range (40ᵒ to 140ᵒ) for the different concentrations (0.004 to 0.01 gm/ml) of the solution by the static light scattering experiment. The angular distribution of scattered light intensity is used by the Debye equation to measure the scattering parameters of the used polymer (Pluronic F-108 prill) [8][9][10]. The refractive index was measured using abbe refractometer to get the refractive index increment since Debye equation shows the importance of measuring the refractive index increment [11].…”

Section: Introductionmentioning

confidence: 99%

Experimental static light scattering study on the scattering parameters for Pluronic

khater

Ghazy

Hendawya

et al. 2022

Benha Journal of Applied Sciences

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Static light scattering from an aqueous solution of Pluronic F-108 prill has been measured over the angles range (40 o to 140 o ) for four different concentrations (0.004, 0.006, 0,008, 0.01 gm/ml). A home build multiangle static light scattering experiment was used to calculate the Rayleigh ratio and construct the Zimm plot, which was used to calculate the radius of gyration〈 〉, the second virial coefficient A 2 , and the molecular weight . The refractive index was measured by abbe's refractometer to calculate refractive index increment . The measured data show that the molecular weight of Pluronic F-108 prill is 14661 gm/mole, which is a medium molecular weight. The second viral coefficient is greater than zero, which means that the Pluronic F-108 prill likes the solvent (deionized water) more than itself. While the radius of gyration 〈 〉 is 1094 nm, which is a little bit large as in an aqueous environment these block copolymers self-assemble into micelles.

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Section: Introductionmentioning

confidence: 99%