M. Padmanaban, M. Kakimoto, Y. Imai
Jul 1, 1990
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0
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Journal
Polymer Journal
Abstract
Two new diaminodisilanes, 1,2-bis(diethylamino)tetramethyldisilane and 1,2-bis(anilino)tetramethyldisilane were synthesized from 1,2-dichlorotetramethyldisilane and the respective amines. These disilane-containing monomers were reacted with bisphenols containing amide and imide groups, giving disilane-containing polyamide and polyimides which had rather low inherent viscosity around 0.1 dl g−1. The polymers were characterized by UV, IR, and elemental analysis. All the polymers were soluble in N,N-dimethylacetamide, dimethyl sulfoxide, N-methyl-2-pyrrolidone, and some of them were also soluble in tetrahydrofuran. The polymers had glass transition temperatures between 105–120°C and were thermally stable up to 300°C in both air and nitrogen, atmospheres. A decrease in the moleclar weight was observed upon exposure to UV Iight indicating the photosensitivity of the disilane-containing polymers.