Synthesis and characterization of a new soluble photosensitive polyimide from bis(4‐aminophenyl)tetramethyldisilane and 4,4′‐sulfonyldiphthalic dianhydride

Padmanaban, Mumirathina; Toriumi, Masaru; Kakimoto, Masa–aki; Imai, Yoshio

doi:10.1002/marc.1990.030110104

Cited by 8 publications

References 3 publications

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Synthesis and characterization of new photosensitive poly (oxyaryleneoxydisilane)s from 1,2‐bis (diethylamino) tetramethyldisilane and various bisphenols

Padmanaban

Kakimoto

Imai

1990

J. Polym. Sci. A Polym. Chem.

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SynopsisA new class of polymers containing a photosensitive disilane unit in the polymer main chain with inherent viscosities between 0.1 and 0.59 dL/g was prepared by the melt polycondensation of l,2-bis ( diethylamino) tetramethyldisilane and various bisphenols. The polymers were characterized by UV, IR, 'H-NMR, and elemental analysis. Poly (oxyaryleneoxydisi1ane)s were soluble in a variety of common organic solvents and have a wide range of glass transition temperatures varying between -65 and 135'C, depending on the arylene structure. Most of the polymers were stable up to 350°C in both air and nitrogen atmospheres. The inherent viscosity of the polymer containing the 1,6-napthalene unit decreased drastically upon UV light irradiation, indicating its p hotodegradation.

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Synthesis and characterization of new photosensitive poly (oxyaryleneoxydisilane)s from 1,2‐bis (diethylamino) tetramethyldisilane and various bisphenols

Padmanaban

Kakimoto

Imai

1990

J. Polym. Sci. A Polym. Chem.

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Preparation and properties of new photosensitive polyimides from bis(4‐aminophenyl)tetramethyldisilane and various aromatic tetracarboxylic dianhydrides

Padmanaban

Toriumi

Kakimoto

et al. 1990

J. Polym. Sci. A Polym. Chem.

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New photosensitive polymides containing photosensitive disilane unit were synthesised from 1,2‐bis(4‐aminophenyl)tetramethyldisilane and various aromatic tetracarboxylic dianhydrides by the usual two‐step procedure that includes ring‐opening polyaddition to yield the precursor polyamic acids, followed by cyclodehydration giving the respective polyimides. The polymaic acids had inherent viscosities between 0.63 and 0.85 dL/g depending on the tetracarboxylic dianhydride used. Excepting the polyimide obtained from pyromellitic dianhydride, all other polyimides were soluble in N‐methyl‐2‐pyrrolidone, m‐cresol, and pyridine. While the polyimide containing diphenyl sulfone unit was amorphous, the other polyimides were semi‐crystalline polymers based on their x‐ray diffractograms. The polyimides had glass transition temperatures between 235 and 304°C. They were thermally stable up to 380°C in both air and nitrogen atmospheres. All the polyamic acids showed a drastic decrease in the inherent viscosity upon UV light irradiation, implying the inherent photosensitivity of the polymers containing the disilane moiety.

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Processable Aromatic Polyimides

Abajo

Campa

1999

Advances in Polymer Science

215

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Synthesis and characterization of a new soluble photosensitive polyimide from bis(4‐aminophenyl)tetramethyldisilane and 4,4′‐sulfonyldiphthalic dianhydride

Cited by 8 publications

References 3 publications

Synthesis and characterization of new photosensitive poly (oxyaryleneoxydisilane)s from 1,2‐bis (diethylamino) tetramethyldisilane and various bisphenols

Synthesis and characterization of new photosensitive poly (oxyaryleneoxydisilane)s from 1,2‐bis (diethylamino) tetramethyldisilane and various bisphenols

Preparation and properties of new photosensitive polyimides from bis(4‐aminophenyl)tetramethyldisilane and various aromatic tetracarboxylic dianhydrides

Processable Aromatic Polyimides

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