Sökning: "tvättmedel"

Visar resultat 1 - 5 av 24 avhandlingar innehållade ordet tvättmedel.

1. 1. Anionic Graft Copolymers with Poly(ethylene oxide) Side-Chains; Synthesis, Solution Properties and Ion Conduction

   Författare :Helene Dérand; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dieletric properites; ion conduction; solution properties; aggregation; amphiphilic polymers; poly ethylene oxide ; preparation; grafting; Polymer technology; biopolymers; Polymerteknik;

   Sammanfattning : The research underlaying this thesis involves synthesis and characterization of well-defined anionic graft copolymers carrying poly(ethylene oxide) (PEO) side-chains. Two different grafting techniques were used. Backbone polymers were prepared through radical terpolymerization of maleic anhydride, styrene and an additional comonomer. LÄS MER

3. 2. Biocatalysed redox reactions - Possibilities and limitations

   Författare :Fabian Rundbäck; Bioteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The use of enzymes for synthetic applications is an area of increasing interest. Enzymes have been pointed out to be an environmentally friendly alternative to existing chemical methods, as well as making completely new synthetic routes possible. LÄS MER

4. 3. Aqueous behaviour of characteristic molecules in the synthesis of porous silica materials : - an atomistic description

   Författare :Emelie Nilsson; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; porous silica; struture directing agents; 29Si-NMR; neutron scattering; empirical potentail structure refinement; micelles;

   Sammanfattning : The formation process of porous silica materials is an intricate process, involving a number of components that interact to form a highly organized material. Both zeolites and mesoporous silica materials typically require the presence of organic structure director agents (SDAs) around which the silica network polymerizes. LÄS MER

5. 4. Studies on mRNA turnover in bacteria

   Författare :Martin Persson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microbiology; aprE; GlpP; glpD; mRNA secondary structure; Bacillus subtilis; mRNA stability; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

   Sammanfattning : Genetic information, which is stored in DNA, is transferred to messenger RNA (mRNA) in a process called transcription. mRNAs are then translated by ribosomes into proteins which, with some important exceptions, catalyze chemical reactions in cells. Since cells must be able to adapt to changes in the environment, mRNAs must be unstable. LÄS MER

7. 5. Green Colloid Chemistry: Characterization of Environmentally Friendly Nonionic Surfactant Systems

   Författare :Christy Whiddon; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nucleophilic substitution; alkylglucosides; bicontinious micelles; self-diffusion NMR; nonionic surfactants; micellar catalysis; Physical chemistry; pKa; Fysikalisk kemi;

   Sammanfattning : Phase diagrams of mixed alkylglucoside surfactants, n-nonyl-b-D-glucopyranoside and n-decyl-b-D-glucopyranoside (C9G1 and C10G1) have been examined for the purpose of determining the microstructure surrounding a closed-loop miscibiliyt gap. There are large deuterium isotope effects on the phase diagram. LÄS MER