Polystyrenes with macro-intercalated organoclay. Part I: Compounding and Characterization

Authors

Maryam Sepehr, National Research Council CanadaFollow
Leszek A. Utracki, National Research Council Canada
Xiaoxia Zheng, Marquette University
Charles A. Wilkie, Marquette UniversityFollow

Document Type

Article

Publication Date

11-28-2005

Source Publication

Polymer

Source ISSN

0032-3861

Abstract

Nanocomposites of polystyrene (PS) were prepared using a melt compounding or co-solvent method. Two commercial PS were used, and two organoclays—one prepared in this laboratory (COPS), and the other commercial Cloisite^® 10A (C10A). The COPS is a product of clay intercalation with a copolymer of styrene and vinyl benzyl tri-methyl ammonium chloride. According to the XRD diffraction data, the clay platelets in COPS and its PNC with PS were relatively well dispersed, i.e. with the interlayer spacings of d₀₀₁=7–8 nm. By contrast, d₀₀₁ in PNC prepared with C10A was only 4 nm. However, the number of clay platelets per stack in PS/COPS was found to be significantly larger than that in PS/C10A, viz. m=3–12, compared to m=2–6. The scanning and transmission electron microscopy indicated that in the PS matrix COPS existed in form of large, immiscible domains.

Comments

Polymer, Vol. 46, No. 25 (November 28, 2005): 11557-11568. DOI.

Recommended Citation

Sepehr, Maryam; Utracki, Leszek A.; Zheng, Xiaoxia; and Wilkie, Charles A., "Polystyrenes with macro-intercalated organoclay. Part I: Compounding and Characterization" (2005). Chemistry Faculty Research and Publications. 122.
https://epublications.marquette.edu/chem_fac/122