Sökning: "Polymer solutions"
Visar resultat 1 - 5 av 180 avhandlingar innehållade orden Polymer solutions.
1. Cellulose solutions in aqueous hydroxide bases
Sammanfattning : Cellulose is a renewable and widely available carbohydrate polymer whose utility for mankind only increases as we move towards a circular bioeconomy. Unlike most plastics or metals, it cannot be melted, and therefore, solution processing is important. LÄS MER
2. Cellulose in quaternary ammonium hydroxide solutions
Sammanfattning : An ever-increasing demand to shift away from fossil-based feedstock towards renewable resources has led to more use of bio-based materials. Cellulose being the most abundant biopolymer on Earth has received a considerable attention with a wide range of applications (in textile fibers, films, membranes, etc. LÄS MER
3. SALDI-MS Method Development for Analysis of Pharmaceuticals and Polymer Degradation Products
Sammanfattning : Surface assisted laser desorption ionization-mass spectrometry (SALDI-MS) was evaluated as a new tool for analysis of polymer degradation products. A SALDI method was developed enabling rapid analysis of low molecular mass polyesters and their degradation products. LÄS MER
4. Superhydrophobic coatings of wax and polymers sprayed from supercritical solutions
Sammanfattning : The possibility of using supercritical carbon dioxide (scCO2) as the primary solvent in a spray process for producing superhydrophobic surfaces have been examined in this work. Using scCO2 as solvent will have considerably lower environmental impact compared to an organic solvent since scCO2 is considered a green solvent as it is non-toxic, non-flammable and recyclable. LÄS MER
5. Chemical Modification of Electrospun Cellulose Nanofibers
Sammanfattning : The forest industry is a large part of the Swedish economy and the export of pulp, paper and wood products constitutes 11% of the total Swedish export of goods. The main product of a pulp mill is purified cellulose, which has many great properties like biodegradability and non-toxicity. LÄS MER