ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary A series of t-butyloxycarbonyloxy (t-hoc-oxy) attached polyamide (t-bocPA) as a polybenzoxazole (PBO) precursor was synthesized from poly(o-hydroxyamide) (PAOH) and its thermal conversion to PBO was investigated by using FT-IR, TGA and DSC. Most of the protecting group of t-bocPA was decomposed at 250 °C and the polymer converted to PBO at 350 °C. The thermal reaction for PBO formation was accelerated by the strong acid such as p-toluenesulfonic acid. It was revealed that photo-acid generator (PAG) can act not only as an acid generator on UV exposure, but also as a catalyst to lower the temperature of PBO formation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002890050573
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