Method for fabricating polybenzoxazole/clay nanocomposite...

Details Method for fabricating polybenzoxazole/clay nanocomposite... Method for fabricating polybenzoxazole/clay nanocomposite...

2006-07-25

2006-07-25

Yoon, Tae H. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S447000, C524S186000, C501S145000, C528S086000

Reexamination Certificate

active

07081491

ABSTRACT:
A method for fabricating a polybenzoxazole/clay nanocomposite material includes performing an ion exchange reaction between an organic amine and Na+-montmorillonite to form a swelled organoclay. A polycondensation reaction is conducted between two types of monomers, isophthaloyl chloride and 2,2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane to form a polybenzoxaxole precursor polyhydroxyamide to form a PBO/clay composite material.

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Hsu, S. L. C, Chang, K. C., “Synthesis and Properties of Polybenzoxazole-Clay Nanocomposites” Polymers 43(2002) 4097-4101.
Chang, J. H., Park D. K., Ihn K. J., Montmorillonite Based Nanocomposites of Polybenzoxazole: Synthesis and Characterization (I) Journal of Polymer Science: Part B: Polymer Physics, vol. 39, 471-476 (2001).
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