Functionalization of multi-walled carbon nanotubes with polymers
Başlık çevirisi mevcut değil.
- Tez No: 401584
- Danışmanlar: PROF. PHILIPPE SERP, DR. JEROME DURAND
- Tez Türü: Doktora
- Konular: Kimya, Chemistry
- Anahtar Kelimeler: multi-walled carbon nanotubes, ionic liquid, polymerized ionic liquid, polymer nanocomposite, polyetherimide, polyamide, epoxy
- Yıl: 2012
- Dil: İngilizce
- Üniversite: Institut National Polytechnique de Toulouse
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 278
Özet
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Özet (Çeviri)
This thesis deals with the surface modification of multi-walled carbon nanotubes with polymers with the aim to achieve a high level of dispersion in polymer matrices. Chapter I gives a comprehensive review of the state of the art of hybrids of ionic liquids with carbon nanomaterials, particularly, nanotubes and more recently, graphene. Chapter II starts with a general overview of the non-covalent adsorption of polymers onto the CNT surfaces followed by a detailed description of the study carried out on the non-covalent functionalization of CNTs with various imidazolium based polymerized ionic liquids (PIL). For this purpose, we further compare the two experimental methods: in situ polymerization and solution mixing. One of the most important applications of CNT is in polymer/CNT composites. Chapter III describes the formation of polyetherimide/CNT composites starting from PIL-CNT hybrids obtained in Chapter II. The preparation and characterization of composites using solvent casting methods have been detailed. Pristine, acid oxidized and PIL functionalized CNTs have been compared. Mechanical, thermal and electrical property measurements on these composites have also been described. The last chapter – Chapter IV, divided into two sections, discusses the covalent functionalization of CNTs with a variety of polymers using two main approaches:“grafting from”and“grafting to”. Using the first approach we have grown polyamide (PA) chains from the surface of caprolactam grafted CNTs by anionic ring opening polymerization. The tensile properties of the PA based composites prepared therefrom containing pristine, amine- and PA-functionalized CNTs have been investigated. The radical polymerization of vinyl imidazolium based IL monomers attached to the activated CNT surface is also given in this section. In the second part of Chapter IV, we have reported several“grafting to”functionalization strategies including radical addition and“defect site”grafting used for the preparation of CNTs covalently attached with polymers intended to blend well with epoxy matrices.
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