Structural properties and scaling of the radius of gyration of two-dimensional star-branched polymers grown by diffusion |
| |
Authors: | Guillermo Ramí rez-Santiago,Carlos I. Mendoza |
| |
Affiliation: | a Departamento de Física-Química, Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, 01000 México, D.F., Mexico b Departamento de Polímeros, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, 04510 México, D.F., Mexico |
| |
Abstract: | We built up star-branched polymers, whose morphology is fully determined by diffusion, with p=1,3,6 and 12 branches with a total of 30,000 monomer units. We investigated their structural properties by calculating the monomer-monomer correlation functions. A detailed finite size scaling analysis of the radius of gyration was also performed to determine the exponent and the corrections to scaling. From these results we calculated the fractal dimension of the branched aggregates and obtained: df=1.222(7), for the linear chain, df=1.2305(8), df=1.247(8) and df=1.261(8) for the three, six and twelve branches polymer, respectively. |
| |
Keywords: | 61.43.Hv 05.40.&minus a 61.41.+e 82.35.&minus x |
本文献已被 ScienceDirect 等数据库收录! |
|