Search for dissertations about: "CP MAS 13C NMR"

Showing result 1 - 5 of 21 swedish dissertations containing the words CP MAS 13C NMR.

  2. 1. Investigating cellulose structure using solid-state NMR spectroscopy

    Author : Alexander Idström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; CNC; crystallinity index; regenerated cellulose; 2D NMR; native cellulose; pulp; Solid-state NMR; ionic liquids; CP MAS 13C-NMR; hornification;

    Abstract : Cellulose is the most abundant polymer in nature and it is an important constituent in most flowers, trees, and even some animals. Cellulose has an established use in many important products, such as textile fibers, paper and paperboard, and recently new applications have received increased attention. READ MORE

  4. 2. Investigating structural changes of cellulose using NMR spectroscopy

    Author : Alexander Idström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; crystallinity index; NCC; ionic liquids; CP MAS 13C-NMR; hornification; native cellulose; regenerated cellulose; NMR cryoporometry; pulp; Solid-state NMR;

    Abstract : In this thesis solid-state NMR and NMR cryoporometry were used to gain information of the structure of cellulose. Measurements were conducted on both native and regenerated cellulose, exposed to a range of different treatments. READ MORE

  5. 3. Investigations of cellulose polymorphs by 13C-CP/MAS-NMR spectroscopy and chemometrics

    Author : Helena Lennholm; Tommy Iversen; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 4. Bax and oxidized phospholipids - a deadly complex : Apoptotic protein-lipid assemblies studied by MAS NMR spectroscopy

    Author : Artur Dingeldein; Gerhard Gröbner; Mikael Elofsson; Tobias Sparrman; Daniel Topgaard; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR spectroscopy; mitochondrial membranes; apoptosis; membrane dynamics and organization; Bcl-2 family proteins; Bax protein; biokemi; Biochemistry;

    Abstract : Mitochondria are renowned for their vital role as cellular powerhouses because they provide ATP via cellular respiration. Additionally, these organelles also play an important role in other physiological processes, such as apoptosis. READ MORE

  7. 5. Multivariate Analysis of 2D-NMR Spectroscopy : Applications in wood science and metabolomics

    Author : Tommy Öman; Mattias Hedenström; Bjart Frode Lutnaes; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 2D NMR; HSQC; cellulose; ligning; STOCSY; HSQC-STOCSY; crystallinity; biologisk kemi; biological chemistry;

    Abstract : Wood is our most important renewable resource. We need better quality and quantity both according to the wood itself and the processes that are using wood as a raw material. Hence, the understanding of the chemical composition of the wood is of high importance. READ MORE