登入選單

返回Google圖書搜尋

Photophysics of Single Chain Poly(arylene Ethynylene)s

Eric Ely Silverman

出版	University of Florida, 2005
URL	http://books.google.com.hk/books?id=yqKJDAEACAAJ&hl=&source=gbs_api

註釋

All of the polymers under investigation were demonstrated to show rapid and efficient transport of singlet, poleron, and triplet carriers. In order to study these properties, polymers with incorporated carrier traps were synthesized. These traps were either randomly distributed throughout the polymer chain or appended to the polymers as end-caps. Helical, organometallic polymer were also synthesized and investigated. A hydrophobic polymer with ester pendant groups was subjected to post-polymerization functionalization to give a hydrophilic material with pendant acid groups. This polymer has many similarities to DNA in that it is a polyanion that readily adopts a helical conformation characterized by face-to-face stacking of aromatic moieties. This polymer accepts many well-known DNA intercalators which show characteristic spectral changes upon binding. Additionally, binding of the polymer to a chiral guest induces the preferential formation of one of the two possible enantiomeric helices, as evidenced by circular dichroism spectroscopy.