Disiloxane-aromatic polyamide (aramid) multiblock copolymers (2SiPASs) were synthesized using 1,3-bis(3-aminopropyl)-l,l,3,3-tetramethyldisiloxane (BATS) as an analog of aramidsilicone resin consisting of aromatic polyamide and poly(dimethylsi1oxane) (PDMS). 2SiPASs afford a transparent and toughene
Synthesis and surface characterization of a new multiblock copolymer based on poly(dimethylsiloxane) and aromatic polysulfone
✍ Scribed by Giovanna Di Pasquale; Angela La Rosa; Antonino Mamo
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 324 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
A new alternating block copolymer was synthesized from dihydroxy‐terminated poly‐(ether ketone sulfone) and bis(dimethylamino)‐terminated polydimethylsiloxane oligomers. The chemistry and the thermal properties are discussed. Surface chemical composition of films was analyzed by ESCA. Quantitative calculations showed a noticeable siloxane enrichment at the surface.
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Block copolymers of polysulfone-poly(alky1ene oxide)-poly(dimethylsi1oxane) have been prepared by the addition of preformed a,w-bis(hydrogensily1) poly(dimethylsi1oxane) oligomers to allyl end-capped poly(alky1ene oxide)-polysulfone. The hydrosilylation reaction, catalyzed by platinum, was employed
This study utilizes different types of bisphenol monomers instead of bisphenol-A to synthesize phenol terminated polydimethylsiloxane-polycarbonate block copolymers. The copolymers were synthesized by interfacial phosgenation of ␣, -phenol-organofunctional polydimethylsiloxane oligomer with various