A UV/visible spectroscopic study of water-soluble conjugated polyenes prepared via the ring-opening metathesis polymerization reaction

1995 ◽  
Vol 196 (1) ◽  
pp. 327-342 ◽  
Author(s):  
V. Amir-Ebrahimi ◽  
Declan Byrne ◽  
James G. Hamilton ◽  
John J. Rooney
Keyword(s):  
Spectroscopic Study ◽  
Ring Opening ◽  
Water Soluble ◽  
Polymerization Reaction ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Conjugated Polyenes ◽  
Uv Visible

Diblock brush-arm star copolymers via a core-first/graft-from approach using γ-cyclodextrin and ROMP: a modular platform for drug delivery

2020 ◽  
Vol 11 (2) ◽  
pp. 541-550 ◽  
Author(s):  
Ruihan Li ◽  
Xuesong Li ◽  
Yipei Zhang ◽  
Abigail O. Delawder ◽  
Nathan D. Colley ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Anticancer Drug ◽  
Ring Opening ◽  
Water Soluble ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Anticancer Drug Delivery ◽  
Star Copolymers ◽  
Modular Platform

Water-soluble diblock brush-arm star copolymers using γ-CD-based core-first ring-opening metathesis polymerization, allowing for anticancer drug delivery via host–guest interaction.

scholarly journals Dewar Heterocycles as Versatile Monomers for Ring-Opening Metathesis Polymerization

2020 ◽  
Author(s):  
Sepand Nistanaki ◽  
Hosea Nelson
Keyword(s):  
Ring Opening ◽  
Water Soluble ◽  
Ring Opening Metathesis Polymerization ◽  
Valence Isomerization ◽  
Metathesis Polymerization ◽  
Grubbs Catalysts ◽  
Amino Acid Polymers ◽  
Highly Strained ◽  
Acetylene Derivatives ◽  
Soluble Poly

We report the utility of readily available heterocycles as precursors to unique ring-opening metathesis polymerization (ROMP) monomers. Photochemical valence isomerization reactions of pyridones, dihydropyridines, and pyrones dearomatize the parent heterocycles to their highly strained Dewar isomers, which readily engage in controlled ROMP reactions using Grubbs catalysts. This strategy is used to access novel polymer backbones that contain strained β-lactam and azetidine cores, which can be further derivatized using post-polymerization chemistries. We demonstrate this through the synthesis of water-soluble β-amino acid polymers and soluble poly(acetylene) derivatives.

Aggregation-induced emission block copolymers based on ring-opening metathesis polymerization

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51194-51200 ◽  
Author(s):  
Yuming Zhao ◽  
Ying Wu ◽  
Guowei Yan ◽  
Ke Zhang
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Water Soluble ◽  
Amphiphilic Block Copolymers ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Aggregation Induced Emission ◽  
Selective Solvents ◽  
First Time

AIE amphiphilic block copolymers were developed from ROMP for the first time. By self-assembly in selective solvents, water soluble fluorescent nano-objects were prepared with varied structures including micelles and vesicles.

scholarly journals Dewar Heterocycles as Versatile Monomers for Ring-Opening Metathesis Polymerization

2020 ◽  
Author(s):  
Sepand Nistanaki ◽  
Hosea Nelson
Keyword(s):  
Ring Opening ◽  
Water Soluble ◽  
Ring Opening Metathesis Polymerization ◽  
Valence Isomerization ◽  
Metathesis Polymerization ◽  
Grubbs Catalysts ◽  
Amino Acid Polymers ◽  
Highly Strained ◽  
Acetylene Derivatives ◽  
Soluble Poly

We report the utility of readily available heterocycles as precursors to unique ring-opening metathesis polymerization (ROMP) monomers. Photochemical valence isomerization reactions of pyridones, dihydropyridines, and pyrones dearomatize the parent heterocycles to their highly strained Dewar isomers, which readily engage in controlled ROMP reactions using Grubbs catalysts. This strategy is used to access novel polymer backbones that contain strained β-lactam and azetidine cores, which can be further derivatized using post-polymerization chemistries. We demonstrate this through the synthesis of water-soluble β-amino acid polymers and soluble poly(acetylene) derivatives.

Synthesis and ROMP of new sulfobetaine and carboxybetaine norbornene

e-Polymers ◽  
2016 ◽  
Vol 16 (3) ◽  
pp. 181-188 ◽  
Author(s):  
Armando Pineda-Contreras ◽  
Julia V. Hernández-Madrigal ◽  
Oscar F. Vázquez-Vuelvas ◽  
Serguei Fomine
Keyword(s):  
Ring Opening ◽  
Functional Group ◽  
Metal Center ◽  
Polymerization Reaction ◽  
Ring Opening Metathesis Polymerization ◽  
Controlled Polymerization ◽  
Metathesis Polymerization ◽  
Trifluoracetic Acid ◽  
Homogenous Medium ◽  
Competitive Complexation

AbstractThe synthesis of novel norbornene based polyzwitterions via ring opening metathesis polymerization (ROMP) is present. Trifluoracetic acid (TFA) was used as a solvent to provide a homogenous medium for the polymerization reaction of sulfobetaines with the commercially available Hoveyda-Grubbs’ initiator. In order to prevent the competitive complexation via carboxylate functional group of the ruthenium metal center, we carried out the controlled polymerization of ethyl protected carboxybetaines monomers.

Synthesis and Purification of Tunable High Tg Electro-Optical Polymers by Ring Opening Metathesis Polymerization

2011 ◽  
Author(s):  
Robert H. Lambeth ◽  
Joseph M. Dougherty ◽  
Joshua A. Orlicki ◽  
Adam M. Rawlett ◽  
Robert C. Hoffman ◽  
...  
Keyword(s):  
Ring Opening ◽  
Optical Polymers ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization
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