Essays about: "polyesters"

Showing result 1 - 5 of 9 essays containing the word polyesters.

1. 1. Sustainable Polymer Production: Investigating Synthesis and Copolymerization of Cyclic Ketene Acetals

   University essay from KTH/Kemiteknik

   Author : Soufian Bourraman; Stella Staffas; Adam Brandt; Simon Isaksson; [2023]
   Keywords : Monomers; polymers; radical; radical ring opening polymerization; polymerization; BMDO; MMA; MVL; MBL; comonomer; copolymer; rROP; sustainable; biobased; degradable; monomer synthesis; plastic; polyester; bulk; solution; NMR; FTIR; TGA; DSC; SEC; hydrolysis; molecular weight; diol; ester bonds;

   Abstract : The large amount of non-degradable plastic waste has become a significant environmental concern, leading to an increased need for degradable plastics. Here in, to create degradable polymers, polyesters were produced through radical ring opening polymerization using cyclic ketene acetals. READ MORE

3. 2. Assessment Of Plastic Degrading Abilities Of Autotransporter Domains Containing Esterase On Synthetic Polyesters

   University essay from Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)

   Author : Linus Hansen; [2023]
   Keywords : Biotechnology; Enzymes; Plastic degradation; Plastic waste management; Technology and Engineering;

   Abstract : In today's world, plastic pollution has become a widespread problem with plastics in oceans, rivers and forests. The use of plastic has increased rapidly since it first was developed and that is because of its advantageous abilities. READ MORE

4. 3. 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

5. 4. Functional Bio-based Copolyesters: Properties and Abilities

   University essay from KTH/Fiber- och polymerteknologi

   Author : Fika Andriani; [2022]
   Keywords : Ring-opening copolymerization; epoxide; anhydride; crosslinked; degradation; Ringöppningssampolymerisation; epoxid; anhydrid; tvärbundet; nedbrytning;

   Abstract : Genom ringöppningssampolymerisation av utvalda epoxider och anhydrider möjliggjordes en enkel strategi för att syntetisera funktionella sampolymerer. Sampolymererna hade förmågan att bilda tvärbundna material, och var dessutom benägna för både hydrolytisk och enzymatisk nedbrytning. READ MORE

6. 5. Development Of Bio-Based Thermosetting Resins

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Snehaben Gaurangkumar Mistry; [2021]
   Keywords : Bio-based polymer; Resin; lactide; lactone; isosorbide; butanediol; polymerisation; characterisation; FTIR; NMR; TGA; DMA;

   Abstract : Thermoset polymers are widely used polymers in the world, but Increase in global plastic pollution and lack of fossil fuel stimulates intense research towards environmentally sustainable materials. Bio-based unsaturated polyesters (UPs) would be an excellent solution to replace oil-based synthetic polyesters. READ MORE