Surface modification of polyaniline nanorods with thiol-terminated poly(ethylene oxide)

Electrochemically grown polyaniline (PAni) thin films have been shown to react efficiently with thiols, which can dramatically change the surface properties of the material without significantly impacting bulk conductivity. Such films, however, are difficult to process and are unsuitable for many applications. Here, we demonstrate the grafting of thiol-terminated poly(ethylene oxide) (PEG-SH) of various molecular weights onto PAni nanorods. The resulting materials are characterized by spectroscopic, microscopic, and thermal analytical methods to demonstrate the covalent attachment of the PEG polymers to the nanorods. The derivatized nanorods are water dispersible and maintain their original morphology and electroactivity. The number of thiols bound to the nanoparticles under a given set of conditions decreases as the size increases, but the total mass of PEG increases with increasing size. The reaction proceeds at room temperature, but is much faster at higher temperature and greater PEG density is observed

FEMINIST ATTITUDES AMONG AFRICAN AMERICAN WOMEN AND MEN

Research on the intersection of race and gender suggests that, for African Americans, racial inequality is more salient than gender inequality. However, theoretical perspectives on the multiplicative effects of status positions and “outsider within” models suggest that minority group membership can be a catalyst for the development of feminist attitudes. This article examines three issues central to feminism: (1) recognition and critique of gender inequality, (2) egalitarian gender roles, and (3) political activism for the rights of women. The authors found that support for feminist ideology was common for both African American women and men, although the level of support varied depending on the issue and by gender. Factors predicting the endorsement of feminist ideology also varied depending on the issue and by gender. The authors found partial support for the race saliency hypothesis, but there was also evidence of the multiplicative effects of status positions on African Americans' feminist attitudes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/66825/2/10.1177_089124398012001005.pd