NDLI: Electrogreffage et photogreffage de couches organiques sur des substrats conducteurs et semi-conducteurs

Content Provider	Semantic Scholar
Author	Berisha, Avni
Copyright Year	2011
Abstract	Cette these decrit deux procedes differents pour le greffage du radical cyanomethyle (CH2CN), derive de l'acetonitrile sur des metaux et des semi-conducteurs. La premiere methode est basee sur une reaction d'abstraction d'un atome d'hydrogene de l'acetonitrile par un radical aryle steriquement encombre. Dans la deuxieme methode, le meme radical cyanomethyle est produit par irradiation dans l'UV lointain. Ce radical reagit avec la surface metallique pour former une liaison covalente, il est aussi responsable de la croissance d'une couche organique comportant des fonctions amines. Ce film fonctionalise a ete caracterise par de nombreuses techniques (IRRAS, ellipsometrie, profilometrie, angle de contact, SEM, EDX, AFM et derivatisation chimique). Dans le dernier chapitre l'adsorption d'un sel de diazonium sur la surface du fer prealablement a son greffage a ete examinee. Les resultats indiquent l'absence d'une telle adsorption.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://tel.archives-ouvertes.fr/pastel-00649488/document
Alternate Webpage(s)	https://pastel.archives-ouvertes.fr/pastel-00649488/document
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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