引用本文:
史林启, 许观藩, 郑国栋, 冯之榴. [PSF-PDMS-PHS]n/PSF共混物的相容性及表面组成[J]. 应用化学,
1997, 14(3): 45-48.
Citation: Shi Linqi, Xu Guanfan, Zheng Guodong, Feng Zhiliu. Compatibility and Surface Composition of[PSF-PDMS-PHS]n/PSF Blends[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 45-48.
Citation: Shi Linqi, Xu Guanfan, Zheng Guodong, Feng Zhiliu. Compatibility and Surface Composition of[PSF-PDMS-PHS]n/PSF Blends[J]. Chinese Journal of Applied Chemistry, 1997, 14(3): 45-48.
[PSF-PDMS-PHS]n/PSF共混物的相容性及表面组成
English
Compatibility and Surface Composition of[PSF-PDMS-PHS]n/PSF Blends
Abstract:
The relationship between the compatibility in bulk and surface enrichment of PDMS has been studied with a series of[PSF-PDMS-PHS]n/PSF blends, where PSF polysulfone, PDMS polydimethylsiloxane, PHS poly-p-hydroxystyrene. DSC, DMA and TEM were used to characterize the bulk morphology, and XPS was used to obtain the information of the surface composition. It is shown that the level of surface enrichment of PDMS was affected by the compatibility between the homopolymer PSF and the hard phase of [PSF-PDMS-PHS]n. PDMS surface enrichment in the blends was similar to that in the corresponding ternary segmented copolymer [PSF-PDMS-PHS]n, when the homopolymer PSF and the hard phase of [PSF-PDMS-PHS]n were miscible. XPS results on the immiscible blends of [PSF-PDMS-PHS]n /PSF indicated a higher surface enrichment of PDMS, and the latter increased rapidly when the bulk siloxane concentrztion increased from 1% to 5%.
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Key words:
- blend compatibility
- / surface enrichment
- / polysulfone
- / polydimethyl siloxane
- / polyhydroxy styrene
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