Synthesis of a Poly(vinyl alcohol)-Based Graft Copolymer Having Poly(e-caprolactone) Side Chains by Solution Polymerization

Aoi, Keigo; Aoi, Hiromi; Okada, Masahiko

doi:10.1002/1521-3935(20020401)203:7<1018::aid-macp1018>3.0.co;2-9

Cited by 34 publications

(34 citation statements)

References 20 publications

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“…2). 19, 28 The methine proton of non‐grafted PVA units (γ partially superimposed in Fig. 2) is situated at 4.14 ppm.…”

Section: Resultsmentioning

confidence: 99%

“…The choice of non‐toxic polymerization solvents is strongly limited because of the poor solubility of PVA, except in water. The ring‐opening oligomerization of CL with PVA was examined in an aqueous solution at 120°C,19 however, no graft copolymer was obtained. PVA‐ graft ‐PCL (PVA‐ g ‐PCL) and PVA‐ graft ‐PLA (PVA‐ g ‐PLA) were synthesized in dimethylsulfoxide (DMSO)19 and in N , N ′‐dimethylformamide (DMF)/toluene solvent system respectively 20.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of poly(vinyl alcohol)‐graft‐poly(ε‐caprolactone) and poly(vinyl alcohol)‐graft‐poly(lactide) in melt with magnesium hydride as catalyst

Guerrouani¹,

Mas²,

Schué³

2009

J of Applied Polymer Sci

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“…2). 19, 28 The methine proton of non‐grafted PVA units (γ partially superimposed in Fig. 2) is situated at 4.14 ppm.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of poly(vinyl alcohol)‐graft‐poly(ε‐caprolactone) and poly(vinyl alcohol)‐graft‐poly(lactide) in melt with magnesium hydride as catalyst

Guerrouani¹,

Mas²,

Schué³

2009

J of Applied Polymer Sci

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“…In all cases, the monomer had totally reacted after 15 min or less, and then, all the points correspond to samples without residual monomer. These reaction times are much lower than those reported in the literature 13–19. The efficiency of the SnOct 2 catalyst is higher for reactions made in the molten state at 185 °C than equivalent reactions made in solution.…”

Section: Resultsmentioning

confidence: 57%

“…Low molar mass alcohol co‐initiators have generally been chosen to obtain PCL with specific end chains, such as butan‐1,4‐diol, ethylene glycol, neopentylglycol or benzyl alcohol. Synthetic hydroxylated polymers have also been used13–19 with SnOct 2 . In this case, the objective was always to modify the polymer with PCL grafts using a “grafting from” process.…”

Section: Introductionmentioning

confidence: 99%

Poly[ethylene‐co‐(vinyl alcohol)]‐graft‐poly(ε‐caprolactone) Synthesis by Reactive Extrusion, 1 ‐ Structural and Kinetic Study

Becquart

Chalamet

Chen

et al. 2009

Macro Materials & Eng

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Chemical modification of EVOH in the molten state at 185 °C by a grafting from process of poly(ε‐caprolactone) in batch was studied. 1H NMR was used to characterize the structure evolutions of PCL grafts. In addition to grafting reactions, dynamic covalent transesterification reactions between EVOH residual alcohols and the polyester grafts led to a redistribution of the PCL grafts length. $\mathop {\overline {Dp} }\nolimits_n $ up to 27 and SR up to 80% were obtained. Experiments made in a corotating mini twin‐screw extruder also confirmed these results. The effect of the alcohol to caprolactone ratio and catalyst concentration (SnOct2) on kinetic evolution showed that few minutes were necessary to complete the polymerization. A kinetic model was proposed and adequate conditions for the synthesis by reactive extrusion were defined.magnified image

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“…The obtained T m for PCL in block copolymer is almost at the same temperature as PCL homopolymer. However, it is likely that the thermal stability of PVA was improved by blocking the PCL segments when compared with T d of PVA homopolymer 21…”

Section: Resultsmentioning

confidence: 99%

Synthesis of biocompatible and biodegradable block copolymers of polyvinyl alcohol‐block‐poly(ε‐caprolactone) using metal‐free living cationic polymerization

Zaleska

Kitagawa

Sugihara

et al. 2009

J. Polym. Sci. A Polym. Chem.

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Applications of metal‐free living cationic polymerization of vinyl ethers using HCl·Et2O are reported. Product of poly(vinyl ether)s possessing functional end groups such as hydroxyethyl groups with predicted molecular weights was used as a macroinitiator in activated monomer cationic polymerization of ε‐caprolactone (CL) with HCl·Et2O as a ring‐opening polymerization. This combination method is a metal‐free polymerization using HCl·Et2O. The formation of poly(isobutyl vinyl ether)‐b‐poly(ε‐caprolactone) (PIBVE‐b‐PCL) and poly(tert‐butyl vinyl ether)‐b‐poly(ε‐caprolactone) (PTBVE‐b‐PCL) from two vinyl ethers and CL was successful. Therefore, we synthesized novel amphiphilic, biocompatible, and biodegradable block copolymers comprised polyvinyl alcohol and PCL, namely PVA‐b‐PCL by transformation of acid hydrolysis of tert‐butoxy moiety of PTBVE in PTBVE‐b‐PCL. The synthesized copolymers showed well‐defined structure and narrow molecular weight distribution. The structure of resulting block copolymers was confirmed by 1H NMR, size exclusion chromatography, and differential scanning calorimetry. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5169–5179, 2009

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Synthesis of a Poly(vinyl alcohol)-Based Graft Copolymer Having Poly(e-caprolactone) Side Chains by Solution Polymerization

Cited by 34 publications

References 20 publications

Synthesis of poly(vinyl alcohol)‐graft‐poly(ε‐caprolactone) and poly(vinyl alcohol)‐graft‐poly(lactide) in melt with magnesium hydride as catalyst

Synthesis of poly(vinyl alcohol)‐graft‐poly(ε‐caprolactone) and poly(vinyl alcohol)‐graft‐poly(lactide) in melt with magnesium hydride as catalyst

Poly[ethylene‐co‐(vinyl alcohol)]‐graft‐poly(ε‐caprolactone) Synthesis by Reactive Extrusion, 1 ‐ Structural and Kinetic Study

Synthesis of biocompatible and biodegradable block copolymers of polyvinyl alcohol‐block‐poly(ε‐caprolactone) using metal‐free living cationic polymerization

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