Sökning: "Ester Ring"

Hittade 3 uppsatser innehållade orden Ester Ring.

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

    Kandidat-uppsats, KTH/Kemiteknik

    Författare :Soufian Bourraman; Stella Staffas; Adam Brandt; Simon Isaksson; [2023]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  3. 2. Functional Bio-based Copolyesters: Properties and Abilities

    Master-uppsats, KTH/Fiber- och polymerteknologi

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

    Sammanfattning : 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. LÄS MER

  4. 3. Synthesis of highly substituted dienes via silaboration and crosscouplingreactions

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Viktor Östlund; [2012]
    Nyckelord :;

    Sammanfattning : A synthetic approach to highly substituted dienes has been investigated. In a four step synthesis, a wide range of molecules can be formed: Sonogashira coupling between an alkyne and a bromoalkene, silaboration of the newly formed enyne, Suzuki‐Miyaura coupling to exchange the boronic ester moiety, and silver(I) oxide activated crosscoupling to replace the silicon atom. LÄS MER