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Showing 1 to 20 of 55 for “"reversible addition-fragmentation chain transfer"”.

  1. Investigation Of Parameters Enabling Admicellar Reversible Addition-Fragmentation Chain Transfer (Raft) Polymerization

    Cheah, Poh Lee2019

    … early termination and increases the rate of dead chain formation. Admicellar polymerizations using the water-soluble initiator exhibited higher Mw polymer compared to the systems using the water-insoluble initiator due to less degree of partitioning of water-soluble initiator in the admicelle …

    mississippi Repository record

  2. Hierarchical self-assembly of nanoparticles using reversible addition-fragmentation chain-transfer block copolymers

    Burns, Fraser2018

    The hierarchical self-assembly of cadmium based quantum dots through the use of RAFT block copolymers have been investigated. The formation of cadmium selenide quantum dots within the core of tetrablock RAFT copolymers in three different solvents, dioxane, THF and DMF was investigated …

    uvic Repository record

  3. Synthesis and Characterization of Graphene-Polymer Nanocomposites via Reversible Addition-Fragmentation Chain-Transfer Polymerization

    Gu, RenpengThe University of Western Ontario2012

    … to develop a facile approach for growing polymer chains from the surface of graphene sheets via reversible addition-fragmentation chain-transfer (RAFT) polymerization. Graphene oxide was synthesized by reacting graphite with potassium permanganate and concentrated sulfuric acid. The oxidation and …

    uwo Repository record

  4. Novel Precursors for Polymer-Protein-Conjugate Synthesis via Reversible Addition-Fragmentation Chain Transfer Polymerization

    Schilli, Christine MariaUniversität Bayreuth

    … of N-isopropylacrylamide with two different chain transfer agents, namely benzyl 1-pyrrolecarbodithioate and cumyl 1-pyrrolecarbodithioate, yielded polymers with narrow molecular weight distributions as well as Mn values that were in good agreement with the calculated ones. A comparison …

    bayreuth Repository record

  5. Overcoming Challenges in Reversible Addition–Fragmentation Chain Transfer Polymerization using Photoinduced Electron/Energy Transfer Catalysis

    Baker, Jared GalenVirginia Tech2026

    … an emphasis on addressing two limitations in reversible addition–fragmentation chain transfer (RAFT) polymerization. Both methods employ photoinduced electron/energy transfer (PET) catalysis to generate radicals within the polymerization system. PET catalysis was selected as the initiation …

    vt Repository record

  6. The synthesis of well-defined functional homo- and block copolymers in aqueous media via Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization

    Mertoglu, MuratUniversität Potsdam

    New chain transfer agents based on dithiobenzoate and trithiocarbonate for free radical polymerization via Reversible Addition-Fragmentation chain Transfer (RAFT) were synthesized. The new compounds bear permanently hydrophilic sulfonate moieties which provide solubility in water independent of the …

    potsdam-diss Repository record

  7. Adsorption behaviour of molecularly imprinted-beta-cyclodextrin polymers prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization for selective recognition of benzylparaben

    Asman, SalizaUniversiti Malaya2015

    … on β-cyclodextrin (β-CD) and the essential of reversible addition�fragmentation chain transfer (RAFT) polymerization process were studied to generate potential MIPs. The study focuses on the characterization and adsorption behaviour of MIPs for selective recognition of benzylparaben (BzP) …

    uthm Repository record

  8. Copolymerizing Acrylonitrile and Methyl Acrylate by RAFT for Melt Processing Applications: A Synthetic Investigation of the Effects of Chain Transfer Agent, Initiator, Temperature, and Solvent

    Beck, Susan AshleyVirginia Tech2014

    … successfully prepared and characterized using reversible addition-fragmentation chain transfer (RAFT) copolymerization. A typical copolymer was charged with 15 wt. % MA content. This thesis describes a systematic variation of the RAFT copolymerization variables to optimize this system. In …

    vt Repository record

  9. Synthesis and study of the micellization behavior of a dual temperature- and pH-responsive PAA-b-PNIPAM block copolymer

    Zarshenas Moghadam, Ehsan2020

    … diblock copolymers with different relative chain lengths of the hydrophobic and hydrophilic blocks were synthesized by reversible addition fragmentation chain transfer polymerization. The preliminary results showed high conversion values for all products. Proton nuclear magnetic resonance …

    emich Repository record

  10. Synthesis and Characterization of Cation-Containing and Hydrogen Bonding Supramolecular Polymers

    Cheng, ShijingVirginia Tech2011

    … as nitroxide mediated polymerization (NMP) and reversible addition-fragmentation chain transfer polymerization (RAFT). Non-covalent interactions were expected to increase the effective molecular weight of the polymeric precursors through intermolecular associations and to induce microphase …

    vt Repository record

  11. Development of Novel Compressible Magnetorheological Fluid (CMRF)

    Pramudya, Irawan2011

    … by force-displacement measurements. The addition of composite polyurethane-microspheres increases the strength and compressibility of the fluid. It also decreases the concentration of iron particles needed in order to achieve the same yield stress as commercially available MR fluid. …

    unr Repository record

  12. Raft Polymerization Of Ph-Responsive, Diblock Copolymers For Nucleic Acid Delivery Vehicles

    Mcclellan, Annie Katherine2019

    … polymerization (CRP) and more specifically reversible addition-fragmentation chain transfer (RAFT) polymerization, it is now possible to develop well-defined polymers with predicted molecular weights and architectures. The work presented here focuses on the RAFT polymerization of a family of …

    mississippi Repository record

  13. Synthesis and Solution Properties of Semi-rigid Polyelectrolytes and Polyampholytes

    Savage, AliceVirginia Tech2014

    … possibly due to their more extended polymer chains. This was the first time that intrinsic polymer rigidity was introduced as a possible design parameter for microbicidal applications. Reversible addition fragmentation chain transfer (RAFT) polymerization techniques were used to copolymerize …

    vt Repository record

  14. Synthese und Charakterisierung von sensitiven vernetzungsfähigen Blockcopolymeren mittels RAFT

    Seifert, DenisTechnische Universität Dresden

    … und Acrylamiden untersucht. Als Methode kam die Reversible-Addition-Fragmentation-chain-Transfer (RAFT) Polymerisation zum Einsatz. Die RAFT wurde gewählt, weil diese im Gegensatz zur ATRP metallionenfrei verläuft und die NMRP nicht für Acrylate geeignet ist. Bei den RAFT-Polymerisationen der …

    qucosa-diss

  15. Biocompatible polymeric nanoparticles for drug/DNA delivery using biologically friendly polymerisation processes

    Irvine, GavinQueen's University Belfast2022

    … several different polymeric nanostructures using reversible addition-fragmentation chain transfer (RAFT) polymerisation in both aqueous and ethanolic solutions.<br/><br/>A preface entailing an abstract, contents, common abbreviations and details of where this work has been presented is …

    qu-belfast Repository record

  16. Developing green processes for the conversion of biobased materials into pyrones

    Bradley, William2019

    … a nucleophilic heterocycle undergoing conjugate addition with brominated TAL producing a corrosion inhibitor. Successful corrosion inhibitors were synthesized in moderate to good yields. The highest corrosion inhibitor efficiency was 88% for newly developed corrosion inhibitors.</p> <p>In the …

    iastate Repository record

  17. Development of Carbohydrate-based Diblock Polymers for Nucleic Acid Delivery

    Sizovs, AntonsVirginia Tech2012

    … chemistry. These monomers were polymerized via reversible addition-fragmentation chain transfer (RAFT) polymerization to yield glycopolymers with the desired lengths and low polydispersity indexes. Glycopolymers were chain-extended with aminoethylmethacrylamide to produce cationic diblock …

    vt Repository record

  18. Computer-Guided Design of Photocatalyst for PET-RAFT Polymerisation

    Wu, ChenyuUNSW, Sydney2020

    … technique, namely photoinduced electron/energy reversible addition-fragmentation chain transfer (PET-RAFT) polymerisation. This thesis starts from using naturally evolved Chl a with various functional substituents and investigating its photocatalytic performance and functionalities in PET-RAFT …

    unsw Repository record

  19. Development of novel polymeric nanoparticles with tailored architectures and functionalities/

    Burts, Alan O. (Alan Omar)Massachusetts Institute of Technology2013

    … explored containing two different bis-norbornene reversible addition-fragmentation chain-transfer (RAFT) agents. A more flexible RAFT initiator crosslinker led to high-dispersity (Đ >\=1.52) BASPs, while the more rigid RAFT initiator crosslinker led to low-dispersity (Đ </=1.05) BASPs. Finally, …

    mit Repository record

  20. Synthesis, Characterization, and Application of Metal-chelating Polymers for Mass Cytometric Bioassays

    Majonis, Daniel2012

    … polymers. The synthesis began with reversible addition-fragmentation chain transfer polymerization, and was followed by numerous post-polymerization pendant group transformations to introduce DTPA lanthanide chelators to every repeat unit, and a maleimide at the end of the chain. The …

    toronto-retro Repository record

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