Thermosensitive micelle-forming block copolymers of poly(ethylene glycol) and poly(N-isopropylacrylamide)

Macromolecules

Volumn 30, Issue 26, 1997, Pages 8518-8520

  Topp, M D C ^a   Dijkstra, P J ^a   Talsma, H ^b   Feijen, J ^a  

^a UNIVERSITY OF TWENTE   (Netherlands)

^b UTRECHT UNIVERSITY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

CERIUM COMPOUNDS; COMPOSITION EFFECTS; COPOLYMERIZATION; CRITICAL MICELLE CONCENTRATION; DIFFUSION IN SOLIDS; EMULSION POLYMERIZATION; GEL PERMEATION CHROMATOGRAPHY; MOLECULAR WEIGHT DISTRIBUTION; POLYAMIDES; POLYETHYLENE GLYCOLS; REDOX REACTIONS; SYNTHESIS (CHEMICAL);

POLYISOPROPYLACRYLAMIDE; THERMOSENSITIVITY;

BLOCK COPOLYMERS;

EID: 0031383195     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9710803     Document Type: Article

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18. n) (Waters 510 pump with TSK G5000PW + G4000PW + G3000PW columns, in water at room temperature at a flow rate of 1.0 mL/min, RI detector Waters 411, and PEG standards). The lower critical solution temperature (LCST) of the PNIPAAm block in water was measured by differential scanning calorimetry (DSC) (Perkin-Elmer, DSC-7 calorimeter) at a concentration of 3 wt %.
19. For TEM a sample of the reaction mixture containing cross-linked micelles was diluted. The images were taken with a Philips CM30\TWIN TEM. Due to the presence of ceric and cerous ions in the reaction mixture, no futher staining procedure was needed.
20. w) were established by a Zimm plot, and the scattering angles ranged from 44.5 to 158.3°. The refractive index increments of the polymer were obtained at 40 °C using a double beam differential refractometer (ERMA ERC7510).
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