Abstract
A method has been worked out for the synthesis of α,ω-(3-aminophenoxy) terminated poly[oxy(dimethylsilyl)-1,4-phenylene(dimethylsilylene)] oligomers with controlled molecular weight. From these oligomers were synthesized polyimide-polysiloxane block copolymers via a transimidization route, with polyimide moieties based on 2-aminopyridine terminated 5,5′-oxybis-1,3-isobenzofuranedione-4,4′-[1,4-phenylenebis(1- methylethylidene)]bisaniline oligomers. The copolymers obtained show higher thermooxidative stability in comparison with copolymers having siloxane moiety based on α,ω-aminopropyl or α,ω-arylamine terminated poly(dimethylsiloxane) oligomers.
Original language | English (US) |
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Pages (from-to) | 275-279 |
Number of pages | 5 |
Journal | Polymer International |
Volume | 40 |
Issue number | 4 |
DOIs | |
State | Published - 1996 |
Externally published | Yes |
Keywords
- Polyimide-polysiloxane block copolymers
- Polyimides
- Thermooxidative stability
- α,ω-(3-aminophenoxy) terminated poly[oxy(dimethylsilyl)-1,4-phenylene(dimethylsilylene)] oligomers
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry