Amphiphilic core-shell nanospheres obtained by intramicellar shell crosslinking of polymer micelles with poly(ethylene oxide) linkers

Chemical Communications

Volumn , Issue 13, 1998, Pages 1415-1416

  Huang, Haiyong ^a   Remsen, Edward E ^b   Wooley, Karen L ^a  

^a WASHINGTON UNIVERSITY   (United States)

^b MONSANTO COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 20444478741     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/a708686e     Document Type: Article

References (20)

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15. 1H NMR spectrum, the average numbers of styrene units and acrylic acid units in the PS-b-PAA copolymer were determined to both be approximately 120. J. S. Wang, D. Greszta and K. Matyjaszewski, ACS Polym. Mater. Sci. Eng., 1995, 73, 416.
16. The SCK syntheses were performed on up to 200 mg scales, with the formation of the polymer micelles following similar procedure to that found in ref 8(b) as well as L. Zhang and A. Eisenburg, Science, 1995, 268, 1728;
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18. The single alkyl bromide located at the chain end of each polymer chain resulting from the ATRP chemistry may also undergo reaction with the diamino crosslinkers.
19. The sizes of SCK particles of 1 shown by TEM cannot be taken as the compact dry-state diameters, owing to distortion of the PEO-containing corona of the nanospheres upon drying on the carbon-coated copper grid substrate. Therefore, the SCK size was predicted by adding the volume of the precursor micelle to the additional volume from the linkers (calculated from the product of moles of linker, linker molecular mass and linker density), followed by conversion to the diameter for a spherical SCK. The 29 nm calculated diameter of 2 agrees with the particle sizes observed in the TEM image.
20. w = 3400) is 45°C.