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Showing 1 to 20 of 71 for “"Ring Opening Metathesis Polymerization"”.

  1. Self-Condensing Ring-Opening Metathesis Polymerization

    Almuzaini, Hanan NasserVirginia Tech2023

    Ring-opening metathesis polymerization (ROMP) is a great tool for synthesizing polyolefin materials with different topologies, including hyperbranched polymers—polymers with high degrees of branching and many end groups. However, hyperbranched polymer synthesis via ROMP is challenging due to …

    vt Repository record

  2. Metal-Free Photoredox-Mediated Ring Opening Metathesis Polymerization

    Pascual, Laura Marie Murphy2018

    Metal-free, photoredox-mediated ring-opening metathesis polymerization (MF-ROMP) is a novel approach to the synthesis of ROMP polymers. Whereas traditional, metal-mediated ROMP uses well-defined transition metal-alkylidene initiators in stoichiometric amounts, MF-ROMP uses a photo-oxidant to …

    washington Repository record

  3. Dual-component systems for storable frontal ring-opening metathesis polymerization resins

    Yazdani, Aliza N.University of Illinois at Urbana-Champaign2022

    Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms

    uiuc Repository record

  4. Accessing Model, Functional Polyolefins and Polyolefin Copolymers with Ring-Opening Metathesis Polymerization

    Dingwell, Claire2022

    … are challenging to synthesize using traditional polymerization methods. Ring-opening metathesis polymerization (ROMP) is a useful tool for achieving this goal as the catalysts are often tolerant to a wide range of functional groups, and the polymerizations are typically well-controlled making …

    umn Repository record

  5. Synthesis, Characterization, and Ring -Opening Metathesis Polymerization Activity of Pentamethylcyclopentadienyl Osmium Complexes

    Brumaghim, Julia LynnUniversity of Illinois at Urbana-Champaign2015

    Several acetonitrile complexes have been prepared; among these are [Cp*Os(CH 3CN)3][PF6], [CP*Os(PPh3)2(CH 3CN)][PF6], and [Cp*Os(COD)(CH3CN)]-[PF6 ]. Addition of 1,3-cyclooctadiene to Cp*2Os2Br 4 in refluxing ethanol affords the allyl complex Cp*Os(eta 3-C8H13)Br2. Treatment of the dimethyl …

    uiuc Repository record

  6. Development of Self -Healing Polymer Composites and Photoinduced Ring -Opening Metathesis Polymerization

    Sriram, Suresh RanganathanUniversity of Illinois at Urbana-Champaign2015

    … in performing Photoinduced Ring Opening Metathesis Polymerization (PROMP) is demonstrated. Polymerization of norbornene and dicyclopentadiene has been performed, showing the simplicity and ease of this procedure. The resulting poly(norbornene) shows high trans content (85%) …

    uiuc Repository record

  7. Iron-catalyzed C—H alkylation and photoredox frontal ring opening metathesis polymerization

    Wendell, Chloe IreneUniversity of Illinois at Urbana-Champaign2021

    … Investigation of a photoinitiated frontal ring opening metathesis polymerization method comprises the last two chapters. Iron metallocarbenes are common intermediates in a wide range of synthetic methods, especially cyclopropanation and insertion into heteroatom-hydrogen bonds. Until 2016, …

    uiuc Repository record

  8. Ring-opening Metathesis Polymerization for the Creation of Responsive Colloids and Surfaces

    He, QilinMassachusetts Institute of Technology2023

    Ring-opening metathesis polymerization (ROMP) is a well-controlled living polymerization method and has been widely used to synthesize various polymer materials. This thesis investigates the use of ROMP in the creation of responsive materials, including photonic polymer colloids and …

    mit Repository record

  9. Synthesis and Characterization of Complex Polymer Topologies using Ring-Opening Metathesis Polymerization

    Alaboalirat, Mohammed AliVirginia Tech2022

    … in the reversible-deactivation radical polymerization (RDRP) step. Moreover, performing ring-opening metathesis polymerization (ROMP) initiated by Grubbs 3rd generation catalyst (G3) on a norbornene functionalized macromolecules allows for creating polymers with bulky side chains. This …

    vt Repository record

  10. Dynamic remodeling and rapid manufacturing of functional materials by ring-opening metathesis polymerization

    Liu, HuiyingUniversity of Illinois at Urbana-Champaign2019

    Ring-opening metathesis polymerization (ROMP) is a powerful and broadly applicable method to synthesize polymeric materials with unique architectures and useful functions. Remarkable progress has been made on the molecular design of catalysts and monomers that allows precise control over ROMP. The …

    uiuc Repository record

  11. Ru-mediated ring-opening metathesis polymerization for the synthesis of complex polymer architectures

    Scannelli, Samantha JillianVirginia Tech2023

    Ring-opening metathesis polymerization (ROMP) has gained attention over the last few decades for its versatility and robustness. Through the use of highly active metal catalysts, such as Grubbs' first-generation catalyst [G1, (PCy3)2(Cl)2RuCHPh] and Grubbs' third-generation catalyst [G3, …

    vt Repository record

  12. Molybdenum and tungsten alkylidene complexes for cis- and trans-selective ring-opening metathesis polymerization

    Jeong, HyangsooMassachusetts Institute of Technology2015

    … formula]. Chapter 2 investigates Z-selective ring-opening metathesis polymerization (ROMP) of 3- substituted cyclooctenes (3-RCOEs) by Mo and W MAP catalysts. [chemical formula], [chemical formula], and [chemical formula] all produced >98% [chemical formula]. The key in forming high molecular …

    mit Repository record

  13. New Purification Strategies and Monomer Platforms for Ruthenium-Initiated Living Ring-Opening Metathesis Polymerization

    Kilgallon, Landon J.Massachusetts Institute of Technology2024

    … to Covalent Capture Purification and Ring-Opening Metathesis Polymerization In chemical spaces where difficult purifications are commonplace, innovative purification methodologies have been developed to circumvent the limitations associated with classical physiochemical property-driven …

    mit Repository record

  14. Ring-opening metathesis polymerization of 3-substituted cyclooctenes initiated by group 6 alkylidene complexes

    Kozera, Daniel JamesMassachusetts Institute of Technology2012

    The highly cis,head-to-tail (cis,HT) selective ring-opening metathesis polymerization of 3-substituted cyclooctenes (3-RCOE; R = methyl, hexyl, phenyl) initiated by high oxidation state M and W alkylidene complexes is described herein. W(NtBu)(CHCMe₃)(pyr)(OHMT) combined high cis,HT selectivity …

    mit Repository record

  15. Mechanistic Studies of Ring Opening Metathesis Polymerization Reactions Involving “In-situ” Generation of Metal Alkylidenes.

    Jayaraman, ArumugamFaculty of Graduate Studies and Research, University of Regina2011

    regina Repository record

  16. Investigating the fundamentals of ring-opening metathesis polymerization to synthesize large, well-defined, bottlebrush polymers

    Blosch, Sarah ElizabethVirginia Tech2022

    Ring-opening metathesis polymerization (ROMP) is a robust synthetic technique for synthesizing complex polymer architectures (topologies). To achieve complex architectures, specifically bottlebrush polymers, using ROMP, attaining the highest degree of living character is essential. As the molecular …

    vt Repository record

  17. Synthesis and reactivity of high oxidation state molybdenum catalysts for ring opening metathesis polymerization of olefins

    Bazan, Guillermo C. (Guillermo Carlos)Massachusetts Institute of Technology1991

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1991.

    mit Repository record

  18. Improved properties, performance and recyclability of thermoset polymers and composites processed by frontal ring-opening metathesis polymerization (FROMP)

    Ivanoff, Douglas GeorgeUniversity of Illinois at Urbana-Champaign2022

    Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01

    uiuc Repository record

  19. Ring-opening metathesis polymerization molybdenum(VI) alkylidene catalysts : study of steroregular polymers, copper nanoclusters, and electroluminescence-active species

    Lavoie, Gino Georges, 1969-Massachusetts Institute of Technology1996

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.

    mit Repository record

  20. Synthesis and Application of Well-Defined Stimuli Responsive Materials

    Lambeth, RobertUniversity of Illinois at Urbana-Champaign2015

    Ring opening metathesis polymerization (ROMP) was used to prepare well-defined azobenzene functionalized polymers with unprecedented control over molecular weight and functional group tolerance. The material's physical response to plane polarized light was studied in thin films and latex particles. …

    uiuc Repository record

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