Journal ArticleDOI
Controlled Radical Polymerization by Degenerative Transfer - Effect of the Structure of the Transfer Agent
TLDR
In this article, various transfer agents of the type R-I were explored, and 1-phenylethyl iodide, iodoacetonitrile, and iodoform were found to be effective in controlling molecular weights and for providing polymers with relatively low polydispersities.Abstract:
Control of the radical polymerization of styrene and acrylates has been achieved by using alkyl iodides in a degenerative transfer process. Various transfer agents of the type R-I were explored. Of those examined, 1-phenylethyl iodide, iodoacetonitrile, and iodoform were found to be effective in controlling molecular weights and for providing polymers with relatively low polydispersities, M w /M n ≤ 1.5. Relatively good control has been also achieved with perfluoroalkyl iodides, whereas most alkyl and aryl iodides have been ineffective transfer agents. Also explored were the effects of initiator structure and reaction temperature on the polymerization systems.read more
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Dispersion Reversible Chain Transfer Catalyzed Polymerization (Dispersion RTCP) of Methyl Methacrylate in Supercritical Carbon Dioxide: Pushing the Limit of Selectivity of Chain Transfer Agent
TL;DR: In this article, a dispersion reversible chain transfer catalyzed polymerization (dispersion RTCP) of methyl methacrylate (MMA) with 1-phenylethyl iodide (PE-I) as chain transfer agent and GeI4 as catalyst in supercritical carbon dioxide (scCO2) was demonstrated.
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Iodine-Transfer Polymerization (ITP) of Ethylene and Copolymerization with Vinyl Acetate.
TL;DR: This highly versatile synthetic platform provides a straightforward access to a diverse range of well-defined PE based polymer materials and reactivity trends were explored by a theoretical mechanistic study.
Journal ArticleDOI
Synthesis of PNVP-Based Copolymers with Tunable Thermosensitivity by Sequential Reversible Addition–Fragmentation Chain Transfer Copolymerization and Ring-Opening Polymerization
TL;DR: The result illustrated that the introduction of more hydrophobic units of C2NVP suppressed the hydrophilic interaction between the polymer chain and water.
Journal ArticleDOI
MADIX Polymerization of Captodative Ethyl α‐Acetoxyacrylate with Acrylate Monomers
TL;DR: In this article, the MADIX homopolymerization of a captodative monomer, ethyl-α-acetoxyacrylate (EAA), was investigated using AIBN as an initiator and O-ethyl-S-(1-methoxycarbonyl)ethyl dithiocarbonate as a transfer agent at 70°C in a mixture of iPrOH and H2O.
Journal ArticleDOI
Polyiodized‐PCL as multisite transfer agent: Towards an enlarged library of degradable graft copolymers
TL;DR: In this paper, a graft copolymerization was performed using a poly(e-caprolactone-co-α-iodo-e-CAPOLACTONE) (PCL-I) which was used as a multisite transfer agent, and the formation of PCL-g-PSty and PCLg-P(n-BuA) copolymers was confirmed by SEC and NMR analyzes.