| Condensed matter physics of polymers has always been an important part inpolymer science. As nano technology came into horizon, polymers in nano scale havebeen widely used in daily life. The condensed structure of confined film is a mostspecial part in this field. People usually focus on the study of condensed structure oftypical polymer,whose repeat unit forms long chain structures, while the randomlybranched polymer formed by the polyfunctional monomers are seldom considered. Inthis paper, however, we prepared polymer films using electrochemical polymerizationtechnology(ECP), and tried to figure out the condensed structure of random branchnet-work film. We try to find some law in these random amorphous films, in order tobuild the structrure model for similar system.We prepared electrochemical alkylcarbazoles films using cyclic voltammetry,and characterized them using spectroscopic ellipsometry. In the second chapter, wefound the best testing condition for electrochemical polymerization films deposited onITO glass, built reasonable model and compared to get the best result, which coulddescribe the system precisely. We built the New amorphous model for glass, andcompare the refraction index with literature. Then we combined two oscillator Newamorphous model and Drude model to discribe the ITO layer. We Made sure that theITO layer was a simple layer rather than gradual layer in ca.100nm. For theelectrochemical polymeriztion ECP TCPC film, we compared different results andfinally determined the6oscillators New amorphous model.In chapter three, we studied on a series of electrochemical polymerization films deposited on different conditions. When the scan rate was fixed, as the scan cycleincreased, the thickness of the film became bigger. It was the first time when we gotthe exact thickness of TCPC during initial depositon which could not be done byAFM or Surface profiler. Then we got the refraction change during depositon.As thefilm became thicker, the refraction index became smaller. Then we researched on therelationship between scan rate and refraction index. As the scan rate increased, therefraction index become smaller at first, then increased. After that, we researched onthe whole net movement on the effect of resident solvent and heating. As the residentsolvent volatilized, the thickness of the film became smaller and finally stayedunchanged after ca.2hours. As the temperature increased, the film became thicker.And we could get a glass-transition temperature（Tg）using Thermo-mechanicalAnalysis (TMA). We thought the Tgshould belong to the movement of the alkylchain among the net. |
