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Trimethylchlorosilane (TMSCL) with different volume ratios was added to polyamide acid (PAA) solutions which were obtained by polymerization of Pyromellitic dianhydride (PMDA) and 4, 4′-Oxydianiline (ODA) in N-methyl-2-pyrrolidone (NMP) solvent. With the addition of TMSCL, the apparent viscosity of PAA solutions shows a sharp fall ranging from 137.6 × 104 to 1.0 × 104 cP with a substantial decline...
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