Self-association and microenvironment of random amphiphilic copolymers of sodium N-acryloyl-l-valinate and N-dodecylacrylamide in aqueous solution

Interaction of anionic surfactant with polymeric nanoparticles of similar charge

“…The r-value thus measured in solution containing 1.0 g/L polymer is ca. 0.129, which is greater than that of micelles of ionic surfactants, such as SDS (r $ 0.06) [37,38]. This means that the hydrophobes are tightly packed in the aggregate as compared to those of SDS micelles.…”

Amino acid based amphiphilic copolymer micelles as carriers of non-steroidal anti-inflammatory drugs: Solubilization, in vitro release and biological evaluation

“…The detailed synthetic procedure and molecular characterization could be found in our earlier report (Dutta et al, 2009a). The molecular weights and the physicochemical properties of the copolymers are summarized in Table 1.…”

“…The detailed solution behavior of the HMPs employed in this study has been reported in our earlier publication (Dutta et al, 2009a). A summary of the physicochemical properties of the copolymers has been presented in Table 1.…”

“…Recently we have also reported synthesis and aggregation behavior of three new amino acid-based hydrophobically modified anionic polyelectrolytes, poly(sodium Nacryloyl-l-valinate-co-alkylacrylamide) (see Chart 1 for structures) (Dutta et al, 2009a). Using different experimental techniques, such as surface tension, viscometry, fluorescence, electron microscopy, and dynamic light scattering it was demonstrated that the copolymers formed spontaneous unicore micelles having hydrodynamic diameter in the range of 50-200 nm with hydrophobic and viscous microenvironments.…”

Hydrophobically Modified Sulfonated Polyacrylamides for IOR: Correlations between Associative Behavior and Injectivity in the Diluted Regime

“…Various techniques have been implemented among which viscosimetry [4][5][6][7][8][9][10][11][12], fluorescence [13][14][15][16], transmission, scanning and environmental scanning electron microscopy (TEM, SEM and ESEM) [16][17][18], 19 F NMR spectroscopy [19,20], neutron scattering [21][22][23][24] and Static and Dynamic Light Scattering (SLS and DLS) [14][15][16][25][26][27][28][29][30][31][32][33][34][35][36][37]. Theoretical approaches have also been proposed to describe HMWSP static [38,39] and dynamic [40] properties.…”