36. Topographical structure of solid films of poly[5,7-dodecadiyne-1,12-diol bis(4-butoxy carbonyl methyl urethane)] self-assembled from its lyotropic liquid crystal phase
作者：Kee Chua Toh, Wei Wang
關(guān)鍵字：solid films; self-assemble; lyotropic liquid crystal
論文來源：期刊
具體來源：Macromolecules
發(fā)表時(shí)間：2000年
The topographical structures of film samples of a soluble polydiacetylene
poly[5,7-dodecadiyne-1,12-diolbis(4-butoxycarbonylmethylurethane)]solidified from its lyotropic liquid crystal phase were characterized by means of scanning electron microscopy and atomic force microscopy. The observations reveal a structural feature of extended-chain lamellae of the film samples and furthermore a three-dimensional chain segregation with respect to molecular length in a layer thinner than 5 nm on the free surface of the samples.