Effect of Conformational Rigidity on Physical Properties of Some Poly(Imide–Amide)s Containing Dimethylsilane Units
作者： Corneliu Hamciuc , Elena Hamciuc , Maria Bruma , Inga A. Ronova
DOI: 10.1081/MA-200040966
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摘要: A series of poly(imide–amide)s containing dimethylsilane units has been synthesized by low temperature solution polycondensation various aromatic diamines that have ether bridges between phenylene rings with a diacid chloride incorporating group and two imide rings, namely, bis[N‐(4‐chlorocarbonylphenyl)phthal‐imidyl]dimethylsilane. The polymers were easily soluble in polar amidic solvents show high thermal stability initial decomposition being above 410°C glass transition the range 251–281°C. polymer can be cast into flexible films dielectric constant 3.66–4.05. Conformational rigidity parameters these calculated Monte Carlo method allowance for hindered rotation. Several physical properties such as solubility, temperature, are discussed relation structure ...
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