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Citation: Shi Linqi, Xu Guanfan, Zheng Guodong, Feng Zhiliu. Surface Composition of Segmented and Graft Copolymers Containing PDMS[J]. Chinese Journal of Applied Chemistry, ;1995, 12(4): 18-22. shu

Surface Composition of Segmented and Graft Copolymers Containing PDMS

Chengchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 2 December 1994
Revised Date: 10 February 1995

The surface properties of a series of segmented and graft copolymers and blends containing polydimethylsiloxane(PDMS) have been investigated by XPS. It is shown that enrichment of PDMS soft segments or molecules occurs on the surface of the segmented copolymers as well as on that of graft copolymers and blends. The order of degree of enrich-ment is as follows: blends > graft copolymers > segmented copolymerss, which is explained as a resuIt of the easiness of movement of the PDMS segments or molecules. Meanwhile, compatibility between the different components (or phases) of the copolymers or blends is of disadvantage to enrichment of PDMS on the surface.
- polydimethylsiloxane,
- polysulfone,
- polyhydroxystyrene,
- segmented copolymer graft copolymer,
- blend,
- surface enrichment,
- XPS,
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