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Poly(ethylene terephthalate)/Clay Nanocomposites Based on Aminododecanoic Acid-Modified Clay: Effect of Compatibilizer Reactivity on Clay Dispersion

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Abstract:

Poly(ethylene terephthalate) (PET)/Clay hybrids were prepared via in situ polymerization, in which the clay was modified with 12-aminododecanoic acid (ADA). Three types of bifunctional compounds were introduced into the system, respectively, as compatibilizers between PET and ADA-Clay. The three compounds contain 1°, 2°, and 3° amino groups, respectively, that could form ionic complex with carboxylic acid of ADA. They also contain an ester group that could react with PET chains through transesterification. The results show that adding the compound with 3° amino group can improve clay dispersion significantly, while the ones with 1° and 2° amino groups are not effective compatibilizers. The possible underlying mechanism is discussed.

Keywords: CLAY; IN SITU POLYMERIZATION; NANOCOMPOSITES; POLY(ETHYLENE TEREPHTHALATE) (PET)

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2006.653

Publication date: December 1, 2006

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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