Search for dissertations about: "sorption calorimetry"

Showing result 1 - 5 of 12 swedish dissertations containing the words sorption calorimetry.

2. 1. Sorption Microcalorimetry: Method Development and Applications

   Author : Natalia Markova; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; lyotropic phase transition; hydrate formation; crystallization; sorption enthalpy; sorption isotherm; water vapor; isothermal heat conduction calorimetry; sorption; Physical chemistry; Fysikalisk kemi;

   Abstract : A double twin isothermal microcalorimeter has been designed and its performance has been tested experimentally. The calorimeter makes it possible to continuously and isothermally scan a solid sample in a broad range of relative vapor pressures at near-equilibrium conditions. READ MORE

4. 2. Effect of hydration on thermodynamic, rheological and structural properties of mucin

   Author : Yana Znamenskaya; Malmö högskola; []
   Keywords : mucous gel; mucus; mucin; PGM; BSM; BSM chitosan multilayers; hydration; water sorption isotherm; relative humidity; water activity; bound water; enthalpy of hydration of biopolymer; glass transition; rheology; phase diagram; fiber-like structure; dumbbell-like structure; sorption calorimetry; DSC; QCM-D; SAXS; AFM;

   Abstract : Mucus, an adherent hydrated layer covering the epithelium, is found in all internal tracts of the body and plays an important role in animal and human life. One of the essential functions of mucus is protection of tissues against dehydration. READ MORE

5. 3. Towards a responsive functional material: Modification of porosity and grafting of poly(N-isopropylacrylamide) in mesoporous silica SBA-15

   Author : Nina Reichhardt; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; mesoporous silica; SBA-15; intrawall pores; PNIPAAM; lower critical solution temperature; water sorption calorimetry; gas sorption;

   Abstract : Mesoporous silica materials, such as SBA-15, have potential as biocompatible carriers for pharmaceutical applications as well as mini-reactors in e.g. catalysis. This potential arises from their well-defined porous structure on the nanometre scale accompanied by a high internal surface area (800 - 1000 m2/g). READ MORE

6. 4. The influence of Morphology on the Transport and Mechanical Properties of Polyethylene

   Author : Bereket Neway; KTH; []
   Keywords : n-hexane diffusion; polyethylene; free volume; solubility; sorption; desorption; mechanical properties; orientation; thermal properties; blend;

   Abstract : The sorption/desorption behaviour of n-hexane in high molarmass linear polyethylene (PE) and branched PEs with 0.39 and5.09 hexyl branches per 100 main chain C atoms andcrystallinities between 4 and 82% at 298 K has been studied.Crystal core contents determined by Raman spectroscopy werealways lower than those determined by density measurements. READ MORE

7. 5. Effect of water on the glass transition and properties of solid-state pharmaceutical formulations

   Author : Ekaterina Bogdanova; Vitaly Kocherbitov; Thomas Rades; Malmö universitet; []
   Keywords : glass transition; glass transition temperature; relaxation; sucrose; trehalose; maltodextrin; lysozyme; unfolding; hydration; solid-stae; sorption calorimetry; Health and society; Hälsa och samhälle;

   Abstract : The aim of this thesis was to increase our knowledge of the glassy state and the glass transition phenomenon and to evaluate the effect of water on the glassy state. To accomplish this, investigations were focused on the amorphous sucrose-water (paper I, II, III), trehalose-water (paper I), maltodextrin-water (paper I), and lysozyme-sucrose-water (paper IV) systems. READ MORE