Sökning: "Chemical Strategy for Sustainability"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Chemical Strategy for Sustainability.

1. 1. Metal-Free Catalysis for Efficient Synthesis

   Författare :Juho Bah; Johan Franzén; King Kuok (Mimi) Hii; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Homogeneous c atalysi s; O rga nocatalysis; Green C hemistry; T o tal S ynthesis; A lkaloids; A symmetric S ynthesis; N on - metal Lewis acid s; C arbocations; Sustainability; Kemi; Chemistry;

   Sammanfattning : The strength of efficient metal-free catalysis will be examined in this thesis. Efforts towards more sustainable processes will be demonstrated through implementation of strategies that meet several of the 12 principles of Green Chemistry. LÄS MER

3. 2. Managing chemical risks in the EU : Data use and new approaches for decision-making

   Författare :Flora Borchert; Marlene Ågerstrand; Annemarie van Wezel; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; risk management; decision-making; REACH; data use; essential use concept; Chemical Strategy for Sustainability; plant protection products; environmental risk assessment; Environmental Sciences; miljövetenskap;

   Sammanfattning : Man-made chemicals benefit our living standards, but exposure to the (most) harmful ones can lead to negative, irreversible effects on human health and the environment. The risk management of harmful chemicals aims to protect human health and the environment from unacceptable risks. LÄS MER

4. 3. Exploring the Frontiers of Polymer Electrolytes for Battery Applications : From Surface to Bulk

   Författare :Christofer Sångeland; Daniel Brandell; Stefano Passerini; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium-ion batteries; solid-state polymer electrolytes; electrochemical stability window; interfaces; ionic conductivity; polycarbonate; polyester; sustainability; sodium-ion;

   Sammanfattning : Lithium-ion batteries have dominated the market since their inception in 1991 due to their unparalleled energy and power densities, but are now faced with new challenges. Growing demand for battery materials for energy intense applications and large-scale interim energy storage have emphasized the need for safe and sustainable battery electrolytes. LÄS MER

5. 4. Protected Lignin Biorefining: Fundamental Insights on Lignin Reactivity

   Författare :Maria Karlsson; Martin Lawoko; Åsa Emmer; Olena Sevastyanova; John Ralph; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sustainability; lignin; biorefinery; cyclic organosolv extraction; preserved structure; NMR; MALDI-TOF MS; Hållbarhet; lignin; bioraffinaderi; cyklisk organosolv extraktion; bevarad struktur; NMR; MALDI-TOF MS; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : The potential to utilize lignin, which constitutes as much as 15-30% of the biomass, needs further evaluation. In the transition towards a bioeconomy, lignin has the potential to replace fossil-based phenols. Attempts to valorize the available technical lignins are ongoing; however, that lignin suffers from molecular heterogeneity. LÄS MER

7. 5. Hydrophobization of cellulose for bio-based materials

   Författare :Tianxiao Huang; Monica Ek; Merima Hasani; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betulin; Cellulose; Hydrophobicity; Mechanical properties; Polymer-matrix composites; Sustainability; Textile; Betulin; Cellulosa; Hydrofobicitet; Hållbarhet; Mekaniska egenskaper; Polymer-matriskompositer; Textil; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Cellulosa, vilken är huvudkomponenten i växter förekommer rikligt i naturen, både på land och i havet. Cellulosabaserade material har i tusentals år använts av människan för dagliga förnödenheter som bränsle och konstruktionsmaterial. Cellulosa isolerades först av den franske forskaren Anselme Payen 1838. LÄS MER