Synthesis and polymerization of a multimethacrylate

Jantas, Roman

doi:10.1002/pola.1990.080280727

Cited by 17 publications

(12 citation statements)

References 12 publications

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“…The product was precipitated into cold (5 °C) water (100 mL), purified by reprecipitation with methanol (10 mL) and water (50 mL), collected, and dried under vacuum. The number of vinyl groups introduced to β-cyclodextrin was characterized by 1 H NMR with d-chloroform. The average number of vinyl groups introduced to β-cyclodextrin determined was 20.4 for the template monomer-3.…”

Section: Methodsmentioning

confidence: 99%

“…Template polymerization is a useful technique for controlling the stereochemistry of polymerization. − When linear polymers are used as the templates, generally, the molecular weight and molecular weight distribution of daughter polymer can be controlled. However, the higher conversion of the polymer and unsuitable molecular weight of the template monomer lead to broad polydispersities .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Bimodal Methacrylic Acid Oligomers by Template Polymerization

Saito

Yamaguchi

2003

Macromolecules

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A multivinyl template monomer with 20.4 methacryloyl groups was synthesized with β-cyclodextrin by esterification of hydroxyl groups with methacrylic anhydride. Copper-mediated atom transfer radical polymerization of the template monomer was carried out with methyl 2-bromopropionate, 2,2‘-dipyridyl, and CuBr as an initiator, a ligand, and a catalyst, respectively. The effects of solvent and polymerization temperature on the degree of polymerization in the template monomer were investigated by kinetic analysis of conversion and the molecular weight of methacrylic acid oligomers obtained by hydrolysis of the polymerized products by GPC. Poly(methacrylate) oligomers with 7 and 14 degrees of polymerization were synthesized along the rims of the template monomer-3 by ATRP in a methanol/water mixture (water 10 vol %) at 50 °C. The observed propagation rate constant, k obs, of the methacryloyl group in the methanol/water mixture (water 10 vol %) at 50 °C was 11.3 × 10-5/s.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Bimodal Methacrylic Acid Oligomers by Template Polymerization

Saito

Yamaguchi

2003

Macromolecules

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“…Method 1reaction between PMKC and HEMA in the presence of triethylamine [13]. The obtained MM showed I@" = 3500.…”

Section: Synthesis Of Muitimethacryiate ( M M )mentioning

confidence: 98%

Copolymerization of multimethacrylate with vinyl monomers

Jantas

1991

Acta Polymerica

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The free radical copolymerization of multimethacrylate with styrene and acrylonitrile in dilute dimethylformamide solutions has been investigated. The effects of the copolymerization conditions on the content of unreacted double bonds, molecular weight, and composition of the copolymers were determined. Based on IR and 'H-NMR spectra the structures of the copolymers were confirmed. The examination of copolymerization in the presence of AIBN labeled with I4C allowed to determine the number of branching points in a macromolecule. The results show that the copolymerization process results in copolymers composed partly of ladder-type blocks and blocks of vinyl monomer units. The thermal properties of the copolymers were determined. Copolymerisation von Multimethacrylat mit VinylmonomerenDie radikalische Copolymerisation von Multimethacrylat mit Styren und Acrylnitril in verdunnter Losung wurde untersucht. Der EinfluD der Copolymerisationsbedingungen auf den Gehalt an nichtreagierten Doppelbindungen, die Molekiilmasse und die Zusammensetzung der Copolymere wurde ermittelt. Auf Basis der IRund 'H-NMR-Spektren wurde die Struktur der Copolymere bestatigt. Die Copolymerisation in Gegenwart von %markiertem AIBN ermoglichte die Bestimmung der Anzahl der Verzweigungspunkte je Makromolekul. Die Ergebnisse zeigen, daB die erhaltenen Copolymere teilweise aus Leiterpolymerblocken und aus Blocken von Vinylmonomereinheiten bestehen. Die thermischen Eigenschaften der Copolymere wurden untersucht. Scheme 1 Actr Polymeriu 42 (1991) Nr. 11 540 JANTAS: Copolymerization of multimethacrylatc with vinyl monomcrs Received A u p s t 3, 1990N-phenyl maleimide (NPMI) was copolymerized with methyl acrylate (MA), ethyl acrylate (EA), methyl methacrylate (MMA), and butyl methacrylate (BMA). The composition diagrams for the copolymerization were determined. An azeotropic monomer composition was found in the range 0.55 to 0.65 of the acrylate feed ratio for the systems MA, EA, and MMA with NPMI with a maximum initial rate ofcopolymerization at 10 mole-% acrylate, whereas neither an azeotropic composition nor a maximum rate was found with the system BMA-NPMI. High concentration of maleimide in the monomer feed affects the intrinsic viscosity negatively. Degradative chain transfer to maleimide is assumed to cause the decrease in molecular weight.

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“…[16][17][18][19][20][21][22][23][24] Many types of multi-vinyl monomer in which vinyl groups are combined with the template chain through covalent bonds have been synthesized and polymerized. [16,[22][23][24] When the polymerization proceeds along template polymer, molecular weight, molecular weight distribution and architecture of product depend on those of the template molecule. For example, linear and cyclic poly(methacrylic acid) [PMAA] oligomers with degree of polymerization (DP ¼ 6, 7 and 14) were finely synthesized by using cyclodextrins as templates.…”

Section: Introductionmentioning

confidence: 99%

Template Polymerization of Multi‐Vinyl Monomer with Poly(2‐hydroxyethyl methacrylate) Backbone

Saito

Yokoi

Iijima

2007

Macromolecular Symposia

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In order to investigate the propagation of polymerization in the template with linear polymer chain, ATRP of methacryloyl type multi-vinyl monomers of pol(2-hydroxyethyl methacrylate) backbone with and without styryl groups on the chain ends was carried out. Change of hydrodynamic radii of products and conversion of vinyl group were analyzed by GPC and FT-IR, respectively.When the multi-vinyl monomer concentration was less than 0.3 wt%, gelation was completely hindered. The kinetic plots of polymerization of multi-vinyl monomers with and without styryl group on the chain ends agreed well.

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Synthesis and polymerization of a multimethacrylate

Cited by 17 publications

References 12 publications

Synthesis of Bimodal Methacrylic Acid Oligomers by Template Polymerization

Synthesis of Bimodal Methacrylic Acid Oligomers by Template Polymerization

Copolymerization of multimethacrylate with vinyl monomers

Template Polymerization of Multi‐Vinyl Monomer with Poly(2‐hydroxyethyl methacrylate) Backbone

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