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Rheological Technique as a Sensitive Method to Characterize the Chain Diffusion across the Interface between Polystyrene and Carbon Black Filled Polystyrene

Version 2 2024-06-17, 23:57
Version 1 2017-05-03, 13:39
journal contribution
posted on 2024-06-17, 23:57 authored by L Shen, D Xu, Y Jian, W Qiu, Q Guo
The mutual diffusion process and interphase development taking place at the interface between disks of polystyrene (PS) and carbon black filled polystyrene (CB-PS) in the molten state were investigated by a small-amplitude, oscillatory shear, rheological technique. The rheological method was employed to probe the thermorheological complexity of these polymer disks. It was found that the dynamic complex shear modulus, G*(t), increased with the time of contact in two time regimes at a fixed frequency. The time of transition between the two regimes was observed to be close to the time needed for the transition from the Rouse mode to the reptation mode. The results showed that the content of the carbon black and the temperature affected the slope of the G*(t)–t curve. Scanning electron microscopy revealed the interface disappeared when the diffusion process was complete.

History

Journal

Journal of Macromolecular Science, Part B: Physics

Volume

56

Pagination

254-261

Location

Abingdon, Eng.

ISSN

0022-2348

eISSN

1525-609X

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2017 Taylor & Francis Group

Issue

4

Publisher

TAYLOR & FRANCIS INC