Stereo-controlled synthesis of polyolefins with cycloalkane groups by using late transition metals

Takeuchi, Daisuke

doi:10.1038/pj.2012.27

Cited by 45 publications

(26 citation statements)

References 89 publications

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“…Polyolefins containing cycles and structurally similar to COCs can be also obtained by copolymerization of a-olefins with a,x-nonconjugated dienes involving intramolecular cyclization [6][7][8][9]. Nevertheless, this last polymerization process allows obtaining only COCs with cycles involving from five to seven carbon atoms.…”

Section: Introductionmentioning

confidence: 96%

Ethylene/1,3-butadiene cyclocopolymerization catalyzed by zirconocene systems

Pragliola

Costabile

Venditto

2014

European Polymer Journal

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Section: Introductionmentioning

confidence: 96%

Ethylene/1,3-butadiene cyclocopolymerization catalyzed by zirconocene systems

Pragliola

Costabile

Venditto

2014

European Polymer Journal

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“…On the basis of the fundamental study of 'nonspecific' protein-particle interactions, strategies for the design of NPs that strongly interact with specific molecules have been developed. Further fusion of the approaches of supramolecular chemistry, 73 stereocontrolled polymerization, 74 topology control 75 and living polymerization 76 is expected to enable future development of uniform polymer ligands 77,78 as 'monoclonal plastic antibodies, 79 that more strongly and specifically recognize target biomacromolecules.…”

Section: Prospectivementioning

confidence: 99%

Interaction between synthetic particles and biomacromolecules: fundamental study of nonspecific interaction and design of nanoparticles that recognize target molecules

Hoshino

Lee

Miura

2014

Polym J

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This article provides a brief review of the literature on the interaction between synthetic particles and biomacromolecules. Understanding the nonspecific interactions between biomacromolecules and synthetic particles is of great importance for using materials in vitro and in vivo. The interaction between functionalized polymer particles and proteins has been studied extensively to identify the main factor that governs the interaction in vitro. Recently, the composition and properties of the protein corona that forms on the surface of nanoparticles (NPs) in biofluids have been studied in the context of the function and distribution of the particles in vivo. In the meantime, NPs that recognize specific biomacromolecules have also been designed by tuning the combination and distribution of functional groups on gold NPs and dendrimers. It has also been shown that nano-gel particles that recognize target molecules can be achieved by (A) optimizing the combination and amount of functional groups in the particles and (B) molecular imprinting polymerization, in combination with (C) affinity purification. Some of these particles are capable of recognizing target molecules and neutralizing their function, even in the bloodstream of living animals, as 'plastic antibodies.'

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“…[1][2][3][4] For supramolecular applications, macrocycles larger than 12-membered rings are typically necessary, as indicated by the supramolecular chemistry of various low-molecular-weight hosts, such as crown ethers 4-6 and cyclodextrins. 7,8 Cyclopolymerization requires very high selectivity of cyclization to avoid crosslinking; hence, cyclopolymerization-producing macrocycles cannot be performed without specific design of monomers and/or polymerization methods.…”

Section: Introductionmentioning

confidence: 99%

Cyclopolymerization of a bisacrylate through selective formation of a 19-membered ring

Ochiai

Shiomi

Yoshita

2016

Polym J

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Radical polymerization of a bisacrylate monomer trans-1,2-bisacryloyloxyethylcarbamoyloxycyclohexane proceeded via cyclopolymerization. The repeating unit consisted of a 19-membered ring structure. Notably, highly selective cyclopolymerization proceeded at a monomer concentration of 0.033 mol l − 1 and produced the corresponding polymer in high yield. The selectivity was validated by size-exclusion chromatography, and nuclear magnetic resonance and matrix-assisted laser desorption ionization time-of-flight mass spectroscopic analyses. INTRODUCTIONCyclopolymerization facilitates preparation of polymers bearing cyclic structures, which serve as rigid skeletons for thermal and mechanical stability, templates for reactions and selective capturing of ions and molecules. 1-4 For supramolecular applications, macrocycles larger than 12-membered rings are typically necessary, as indicated by the supramolecular chemistry of various low-molecular-weight hosts, such as crown ethers 4-6 and cyclodextrins. 7,8 Cyclopolymerization requires very high selectivity of cyclization to avoid crosslinking; hence, cyclopolymerization-producing macrocycles cannot be performed without specific design of monomers and/or polymerization methods. The simplest approach is polymerization under highly diluted conditions, in which, for example, various polymers bearing crown ether cavities have been prepared with bifunctional monomers bearing polyether spacers. However, the low concentration often limits the yields of polymers. 4,9 Effective strategies for improvement of the cyclization tendency involve conformational orientation of two polymerization groups with cyclic structures 10-21 or templates such as metal cations 22,23 and selective alternating copolymerization. 24,25 In the most common method, namely, the design of oriented monomers, additional constraints by steric hindrance 12,13,19 and hydrogen bonding 17 are effective in improving the cyclization tendency.Among these methodologies, we focus on the design of oriented bifunctional monomers accessible via simple one-step reactions suitable for practical applications. 15,17,20 A bismethacrylate monomer, BMCH (trans-1,2-bismethacryloyloxyethylcarbamoyloxycyclohexane), can be prepared via the reaction of 2-methacryloyloxyethylisocyanate and trans-1,2-cyclohexanediol. The radical polymerization of BMCH proceeded through the selective cyclopolymerization because of the orientation of the methacrylate moieties by the cyclohexane ring and the hydrogen bonding of the urethane groups and gave a polymer consisting of repeating 19-membered ring units. 17 To expand the

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Stereo-controlled synthesis of polyolefins with cycloalkane groups by using late transition metals

Cited by 45 publications

References 89 publications

Ethylene/1,3-butadiene cyclocopolymerization catalyzed by zirconocene systems

Ethylene/1,3-butadiene cyclocopolymerization catalyzed by zirconocene systems

Interaction between synthetic particles and biomacromolecules: fundamental study of nonspecific interaction and design of nanoparticles that recognize target molecules

Cyclopolymerization of a bisacrylate through selective formation of a 19-membered ring

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