Essays about: "ESTER"

Showing result 6 - 10 of 104 essays containing the word ESTER.

  1. 6. Investigation of acidic chemical recycling of poly(acetal-ester)s

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Saga Vesterbacka; [2023]
    Keywords : Poly actetal-ester s; Chemical plastic recycling; Hydrolysis; Acidic degradation; Akestra; PHVT; Re-polymerization; Polymer technology; Chemistry;

    Abstract : Plastic recycling is a very relevant topic from both environmental and economic viewpoints. Chemical plastic recycling is a logical solution to the plastic problems, which shows the potential to reduce plastic waste and carbon emissions from burning the plastics. READ MORE

  3. 7. Interventions to Reduce Car Use: A Meta-Analysis

    University essay from Linköpings universitet/Kommunikations- och transportsystem; Linköpings universitet/Tekniska fakulteten

    Author : Ester Al-Salehi; [2023]
    Keywords : Interventions; Car use reduction; Policy measure; Intervention effect; Transport effect.;

    Abstract : Transportation has become an essential part of people's lives to move from one place to another, increasing the transport mobility for passengers. Therefore, road transport accounts for the second largest contributor to greenhouse gas emissions in Europe, and to increased congestion. READ MORE

  4. 8. 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

  5. 9. Jämförande studie av två verktyg avsedda för ekosystemtjänstanalyser

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Moa Sjösten Andersson; Sandra Nilsson; [2023]
    Keywords : Ekosystemtjänster; ekosystemtjänstanalys; analysverktyg; urbana grönytor;

    Abstract : Det nuvarande stadsplaneringsidealet leder till att många städer blir allt tätare och att urbana grönytor går förlorade i en accelererande takt. Förtätningen bidrar därmed till att livsviktiga ekosystemtjänster utarmas eller elimineras totalt, vilket i sin tur resulterar i ett flertal negativa konsekvenser på samhällelig nivå. READ MORE

  6. 10. Service life study of environmentally friendly lubricants.

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Marybeth Chetachukwu Ugoh; [2023]
    Keywords : Base oil; Ageing; Glycerol; PPG; PEG; Squalene; Rapeseed oil; Ester; Paraffin; Oxidation; FTIR;

    Abstract : Environmentally friendly lubricants are in demand in response to the rising concerns and restrictive legislation that surround the use of mineral oil lubricants. One area of importance is understanding the service life of the environmentally friendly base oils of these non-toxic, biodegradable and renewable alternatives. READ MORE