Prof. Dr. M. Jansen

II Literature overview 7 1 Fullerenes- general 9 1.1 Discovery....................................

aus Leverkusen-Schlebusch

vorgelegt vo

Inaugural-Dissertation

selbständig angefertigt und keine anderen als die angegebenen Quellen und Hilfsmittel benutzt habe. Ich habe diese Dissertation in gleicher oder ähnlicher Form in keinem anderen Prüfungsverfahren vorgelegt. Außerdem erkläre ich, daß ich bisher noch keine weiteren akademischen Grade erworben oder zu erwerben versucht habe. Düsseldorf, den 26. 05. 2009 Yao WangAcknowledgements First of all I would like to express my heartfelt gratitude to my supervisor Prof. Dr. Peter Proksch, for offering me the remarkable opportunity to join his research group and to be his PhD student. I sincerely appreciate his genial supervision, admirable guidance, and valuable support for my study in Düsseldorf. I am deeply indebted to Prof. Dr. Wenhan Lin for bringing me into the field of natural product chemistry and introducing me to Prof. Proksch. Thank him for his constructive discussions, expert suggestions and continuous encouragement. I would like to expess my special appreciation to Dr. RuAngelie Edrada-Ebel for all the knowledge and techniques she taught me, as well as for her precious help and patient direction. Without her I could not make the study so far. I am grateful to Dr. Victor Wray (Helmholtz Centre for Infection Research), for the distinguished NMR measurements and his crucial opinion on the structure elucitation of the isolated compounds

des adademischen Grades

Development of thermally stable nanofillers and their application in polyimide nanocomposites

zur Erlangung des akademischen Grades

of conducting the dissertation and scientific freedom I have been granted. I am grateful for being part of the Ocean Engineering Group. For further support and taking interest in this work many thanks as well go to the second promoter, Prof. Dr.-Ing. Thamsen and the chair doctoral comity Prof. Dr.-Ing. Holbach. Many thanks go to my colleagues and the staff of the Ocean Engineering Group of the TU-Berlin for great teamwork, vivid discussions, and the great time I have had during the years. Namely, I wish to thank Marco Klein and Dr. Robert Stück and Matthias Dudek for the great cooperation, as well as André Kauffeldt, Sascha Kosleck, Nils Otten, Daniel Testa and Kornelia Tietze. Dr. Janou Hennig and Dr. Christian Schmittner I which to thank for the comments and the encouragement as well as Prof. Guedes Soares and Prof. Molin for valuable advice. Most importantly, I thank my dear wife Mahboubeh and my parents for their everlasting patience and support. i