Essays about: "limonene"

Showing result 1 - 5 of 13 essays containing the word limonene.

  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. 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

  4. 3. Gas Chromatography Mass Spectrometry Analysis of Epoxides in Gas Phase Reactions

    University essay from KTH/Kemi

    Author : Stephanie Kylington; [2022]
    Keywords : organic peroxy radicals; unsaturated alkenes; TD-GCMS; Tenax® TA; internal standard; organiska peroxidradikaler; omättade alkener; TD-GCMS; Tenax® TA; intern standard;

    Abstract : En nyligen genomförd studie visade att reaktioner mellan vissa radikaler och omättade alkener är snabbare vid rumstemperatur än vad man tidigare har trott. Dessa reaktioner är viktiga för atmosfäriska oxidationscykler och följaktligen var syftet med detta masterprojekt att beräkna hastighetskonstanterna för dessa reaktioner mellan metyljodid och 1-jodidpentan med tetrametyletylen, isopren och limonen vid rumstemperatur genom att kvantifiera respektive epoxid; tetrametyloxiran, isoprenmonoxid och limonen 1,2 epoxid, som producerades. READ MORE

  5. 4. A hopeful study of hop : agronomic performance historically cultivated hop varieties grown in Uppsala

    University essay from SLU/Dept. of Soil and Environment

    Author : Ida Elisabeth Mackegård; [2021]
    Keywords : hops; feral hops; α – acid; β – acid; essential oil; development stages;

    Abstract : Historically cultivated grown hop usually have an early maturation, this is important for developing α and β – acid. In addition, these varieties often come with an interesting history and have the potential to give the local beer an even more local connection. READ MORE

  6. 5. Skin Models for Screening of Topical Delivery

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Johanna Carlsson; [2020]
    Keywords : Transdermal delivery; biological actives; topical formulations; penetration enhancers; skin models; permeation through skin; penetration into skin;

    Abstract : The interest of drug delivery via the skin is progressively increasing due to its convenience and affordability. However, the skin has an effective barrier function which hinders drugs to penetrate. READ MORE