Synthèse des matériaux riches en carbone à partir de la polymérisation topochimique des diacétylènes

Authors: Neabo, Jules Romeo
Advisor: Morin, Jean-François
Abstract: The present thesis describes two strategies toward the synthesis of carbon-rich nano-objects namely organic nanotubes and graphene-like materials. The common point of our methodology is based on topochemical polymerization of phenyl-terminated diacetylene units derivatives. The proof-of-concept regarding the topochemical polymerization of diarylbutadiyne derivatives in the gel state is presented in chapter two. The same strategy is used to study the topochemical polymerization of octatetrayne derivatives in the same state. Optical properties show that the resulting material is made of carbon-rich nanoparticles with variable sizes. The overall results are included in chapter three. Chapter four describes the synthesis of polydiacetylene nanowires by topochemical polymerization of star-shaped molecules containing diarylbutadiyne moieties. The chapter five, which is the most important, describes the synthesis of defect-free graphene-like material from temperature mediated cycloaromatization reaction of 2D polydiacetylene obtained by topochemical polymerization of oligomers of diarylbutadiyne precursor. Finally, chapter six presents attempt toward the synthesis of organic nanotubes from topochemical polymerization of diacetylene from meta-poly(phenyl butadiyne) foldamers.
Document Type: Thèse de doctorat
Issue Date: 2013
Open Access Date: 19 April 2018
Grantor: Université Laval
Collection:Thèses et mémoires

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