Essays about: "chemical modification"

Showing result 6 - 10 of 40 essays containing the words chemical modification.

  1. 6. ROP in novel biobased ionic liquids towards cellulose functionalization

    University essay from KTH/Fiber- och polymerteknologi

    Author : Rebecca Mattsson; [2023]
    Keywords : Ionic liquids; SI-ROP; coROP; polyesters; cellulose; Jonvätska; yt-initierad Ringöppnings-polymerisation; ringöppnings-sampolymerisation; polyestrar; cellulosa;

    Abstract : Ett nytt sätt att aktivera cellulosa för kemisk modifiering med hjälp av en miljövänlig process har utvecklats innan starten av detta projekt. Två versionen av den nyskapade betain-baserade jonvätskan, BBIL har syntetiserats, en som använder mesylat som motjon, M-BBIL och en som använder acetat, A-BBIL. READ MORE

  3. 7. Production, Purification, and Characterization of wood substrates and Galactose oxidase enzyme

    University essay from KTH/Industriell bioteknologi

    Author : Rakhesh Pongalikonnar Ranganathan; [2023]
    Keywords : Peracetic acid treatment; Galactose oxidase; Pichia pastoris; Biomass recalcitrance; Enzymatic upgrading; Perättiksyrabehandling; Galaktosoxidas; Pichia pastoris; Motsträvighet i biomassa; Enzymatisk uppgradering;

    Abstract : Trä är den bästa förnyelsebara källan för att producera många produkter på grund av dess biokompatibla och biologiskt nedbrytbara natur. Träets biomassa har en motstridig natur mot enzymatisk uppgradering. READ MORE

  4. 8. Mechanical properties of viscose filament : Made from recycled cotton textile and softwood dissolving pulp

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Author : Sanne Karlsson; [2022]
    Keywords : Recycled cotton textile; recycled textile; dissolving pulp; wood dissolving pulp; softwood; viscose dope; viscose filament; the viscose process; spinning process; Återvunnen bomullstextil; återvunnen textil; dissolvingmassa; trädissolvingmassa; barrved; viskos dop; viskosfilament; viskosprocessen; spinningprocess;

    Abstract : The textile industry is one of the largest industries in the world and it causes up to 10 % of the global greenhouse gas emissions. With large environmental issues of cotton- and oil-based textiles, other options are explored such as man-made fibers producing fibers like viscose and lyocell. READ MORE

  5. 9. Surface Functionalization of Nanowires Using Silane-PEG Compounds

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Hedvig Ekfors Elvin; [2022]
    Keywords : Functionalization; Nanowires; Silanization; Surface Chemistry; Materials Chemistry; Chemistry;

    Abstract : Introduction: GaP nanowires were functionalized using silane-PEG-NH2 and compared with cellulose acetate, PAcrAm™-g-(PMOXA, amine, silane) and a non-functionalized reference sample. Functionalization would allow strong, covalent anchoring of antibodies instead of adsorption. READ MORE

  6. 10. Chemical modification of regenerated-cellulose films with determined patterns and different regeneration mediums to achieve superhydrophobic properties

    University essay from Mittuniversitetet/Institutionen för kemiteknik

    Author : Pornpan Kongthong; [2021]
    Keywords : Surface roughness; regeneration of cellulose; Regenerated-cellulose; superhydrophobic surfaces; Alkyl Ketene Dimer AKD ; Scanning Electron Microscope SEM and X-Ray diffraction XRD ;

    Abstract : In our modern society there is a need to find a material that is biodegradable to reduce the use of plastic for a greener society. By means of superhydrophobic surfaces there is a possibility to replace plastic with cellulose and use Alkyl Ketene Dimer (AKD) as a sizing agent to make the surface hydrophobic. READ MORE