Kagoshima 890, japan SYNOPSIS Poly(dimethylsi1oxane) (PDMS) and aromatic polyamide (aramid) multiblock copolymers (PASs) ranging from 26 wt % to 75 wt % in PDMS content were prepared and cast into transparent, ductile, and elastomeric films from N,N-dimethylacetamide solutions. The gas permeation pr
Novel functional polymers: Poly(dimethylsiloxane)–polyamide multiblock copolymer. III. Synthesis and surface properties of disiloxane–aromatic polyamide multiblock copolymer
✍ Scribed by Tsutomu Furuzono; Koji Seki; Akio Kishida; Taka-Aki Ohshige; Kazunori Waki; Ikuro Maruyama; Mitsuru Akashi
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 1002 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
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 toughened plastic film. The surface properties of 2SiPAS were investigated by X-ray photoelectron spectroscopy (xps) and static contact angle measurement. The results of surface analysis suggested that BATS content of the PSiPAS surface increased with increasing BATS content in bulk. The interaction between the platelets and the 2SiPAS surface was found to be very weak when the BATS content reached 26 wt % in bulk.
📜 SIMILAR VOLUMES
Poly(dimethylsiloxane) (PDMS) and aromatic polyamide (aramid) multiblock copolymer (PAS) membranes containing ®55 wt % of PDMS were prepared. Their tensile strength, morphology, and oxygen permeation property were investigated. The observed high tensile strength of PAS with 55 wt % of PDMS indicates
## 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. Q