Search for dissertations about: "polymer enzyme"

Showing result 1 - 5 of 83 swedish dissertations containing the words polymer enzyme.

2. 1. Enzyme catalysis towards bio-based UV-curable buildingblocks

   Author : Maja Finnveden; Mats Martinelle; Katja Loos; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Enzyme; Enzymatic Polymerizations; Biocatalysis; Lipase; CalB; MsAcT; Substrate specificity; Selectivity; Polymer Chemistry; UV-curring; Bioteknologi; Biotechnology;

   Abstract : Polymeric materials are found in virtually all areas of daily life; they are found in everything from packages keeping our food safe to the buildings where we spend our days, and the production is a worldwide industry. Although polymeric materials play a big part in sustainable solution’s, a lot can be done to develop more environmental methods for producing them. READ MORE

4. 2. Building blocks for polymer synthesis by enzymatic catalysis

   Author : Stefan Semlitsch; Mats Martinelle; Sergio Riva; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Enzyme; Enzyme Engineering; Biocatalysis; Lipase; CalB; MsAcT; Substrate specificity; Selectivity; Polymer Chemistry; Polymer Synthesis; Bioteknologi; Biotechnology;

   Abstract : The search for alternatives to oil-based monomers has sparked interest for scientists to focus on the use of renewable resources for energy production, for the synthesis of polymeric materials and in other areas. With the use of renewable resources, scientists face new challenges to first isolate interesting molecules and then to process them. READ MORE

5. 3. Lignocellulose Degradation by Soil Micro-organisms

   Author : Ran Bi; Gunnar Henriksson; Jerry Ståhlberg; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Lignocellulosic biomass is a sustainable resource with abundant reserves. Compared to petroleum ‐ based products, the biomass ‐ derived polymers and chemicals give better environmental profiles. A lot of research interest is focused on understanding the lignocellulose structures. READ MORE

6. 4. Novel methods to synthesize aliphatic polyesters of vivid architectures

   Author : Rajiv Srivastava; Ann-Christine Albertsson; Ronnie Palmgren; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polyesters; 1; 5-dioxepan-2-one; Caprolactone; Sn Oct 2; Enzyme; Lipase-CA; Ring-Opening Polymerization; Architecture; Tissue Engineering; Polymer chemistry; Polymerkemi;

   Abstract : Cross-linked films of ε-caprolactone (CL) and 1,5-dioxepan-2-one (DXO) having various mole fractions of monomers and different cross-link densities were prepared using 2,2’-bis-(-caprolactone-4-yl) propane (BCP) as cross-linking agent and Sn(Oct)2 as catalyst. Reaction parameters were examined to optimize the film-forming conditions. READ MORE

7. 5. Aliphatic Polyesters for Soft Tissue Engineering : Development from Conventional Organometallic to Novel Enzymatic Catalysis

   Author : Rajiv Kumar Srivastava; Ann-Christine Albertsson; Stanishaw Penzzek; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; aliphatic polyester; 1; 5-dioxepan-2-one; ε-caprolactone; L-lactide; D-lactide; D; L-lactide; enzyme; lipase CA; lipase PS; Polymer chemistry; Polymerkemi;

   Abstract : The development of macromolecules with defined structure and properties, aimed specifically for biomedical applications, has resulted in diverse biodegradable polymers with advanced architectures. Among them, aliphatic polyesters synthesized by ring-opening polymerization (ROP) of lactones and lactides have a leading position due to their good mechanical properties, hydrolyzability and biocompatibility. READ MORE