Micellisation of polystyrene-b-polyglycidol copolymers in water solution

Otulakowski, Łukasz; Gadzinowski, Mariusz; Słomkowski, Stanisław; Basiǹska, Teresa; Foryś, Aleksander; Dworak, Andrzej; Trzebicka, Barbara

doi:10.1016/j.eurpolymj.2017.12.010

Cited by 12 publications

(31 citation statements)

References 45 publications

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“…In a more recent study, the micellization of PS‐ block ‐poly(glycidol) was studied. The CMC of those block copolymers, with similar molar ratio of hydrophile to hydrophobe compared to this study, was reported to be 4 × 10 −4 M . Another study with PS‐ block ‐poly(ethylene oxide) at higher molecular weights (16.2 kg mol −1 ) measured the CMC to be 55 × 10 −4 M .…”

Section: Resultssupporting

confidence: 66%

“…47 In a more recent study, the micellization of PS-block-poly(glycidol) was studied. The CMC of those block copolymers, with similar molar ratio of hydrophile to hydrophobe compared to this study, was reported to be 4 × 10 −4 M. 48 Another study with PS-block-poly(ethylene oxide) at higher molecular weights (16.2 kg mol −1 ) measured the CMC to be 55 × 10 −4 M. 49 As expected, the block copolymers in this study exhibit lower CMCs due to their molecular weight being up to 2.5 times higher. Khan and Siddiq, for instance, tested the effect of end-group hydrophobicity on its CMC and observed a decrease in CMC with increasing hydrophobicity due to enhanced association ability of the polymer allowing micellization to occur at lower concentration.…”

Section: Cmc Measurementssupporting

confidence: 67%

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Poly(styrene/pentafluorostyrene)‐block‐poly(vinyl alcohol/vinylpyrrolidone) amphiphilic block copolymers for kinetic gas hydrate inhibitors: Synthesis, micellization behavior, and methane hydrate kinetic inhibition

Rajput

Colantuoni

Bayahya

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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Amphiphilic block copolymers of short poly(styrene) (PS) or poly(2,3,4,5,6‐pentafluorostyrene) (PPFS) segments with comparatively longer poly(vinyl acetate) or poly(vinylpyrrolidone) (PVP) segments are synthesized using a 2‐cyanopropan‐2‐yl N‐methyl‐N‐(pyridin‐4‐yl)dithiocarbamate switchable reversible addition–fragmentation chain transfer (RAFT) agent toward application as kinetic gas hydrate inhibitors (KHIs). Polymerization conditions are optimized to provide water‐soluble block copolymers by first polymerizing more activated monomers such as S and PFS to form a defined macro chain‐transfer agent (linear degree of polymerization with conversion, comparatively low dispersity) followed by chain extensions with less activated monomers VAc or VP by switching to the deprotonated form of the RAFT agent. The critical micelle concentrations of these amphiphilic block copolymers (after VAc unit hydrolysis to vinyl alcohol units) are measured using zeta surface potential measurements to estimate physical behavior once mixed with the hydrates. A PS‐poly(vinyl alcohol) block copolymer improved inhibition to 49% compared to the pure methane–water system with no KHIs. This inhibition was further reduced by 27% by substituting the PS with a more hydrophobic PPFS. A block copolymer of PS–PVP exhibited 20% greater inhibition than the PVP homopolymer and substituting PS with a more hydrophobic PPFS resulted in a 35% further decreased in methane KHI. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2445–2457, 56, 2445–2457

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Section: Resultssupporting

confidence: 66%

Section: Cmc Measurementssupporting

confidence: 67%

Poly(styrene/pentafluorostyrene)‐block‐poly(vinyl alcohol/vinylpyrrolidone) amphiphilic block copolymers for kinetic gas hydrate inhibitors: Synthesis, micellization behavior, and methane hydrate kinetic inhibition

Rajput

Colantuoni

Bayahya

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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“…Micellization of PS-b-PGL copolymers in water was reported in our previous work [43]. Copolymer chains consist of a constant number of styrene units and various lengths of PGL blocks.…”

Section: Introductionmentioning

confidence: 73%

“…Information about PS-b-PGL copolymers used in this study are presented in Table 1. A detailed description of their polymerization and parameters was given in our previous work [43]. In Ref.…”

Section: Resultsmentioning

confidence: 99%

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Micellization of Polystyrene-b-Polyglycidol in Dioxane and Water/Dioxane Solutions

et al. 2020

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In this work, the self-assembly of a series of amphiphilic polystyrene-b-polyglycidol (PS-b-PGL) diblock copolymers in dioxane and dioxane/water mixtures is presented. The PS-b-PGL have an average degree of polymerization (DP) of PS block equal to 29 units and varied degrees of polymerization for the glycidol segments with DPs of 13, 42, 69 and 117. In dioxane, amphiphilic diblock copolymers form micelles with the hydrophilic PGL placed in the core. Critical micelle concentration (CMC) was determined based on the intensity of scattered light vs. concentration. The micelle size was measured by dynamic light scattering and transmission electron microscopy. Also, the behaviour of the copolymer was studied in water/dioxane solutions by following the changes of scattered light intensity with the addition of water to the system. Critical water content (CWC) of the studied systems decreased as the initial PS-b-PGL concentration in dioxane increased. This process was accompanied by a decrease in the size of aggregate formed. For a given initial copolymer concentration, the size of copolymer aggregates decreased linearly with increasing the length of the PGL block

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A Powerful Strategy for Synthesizing Block Copolymers via Bimetallic Synergistic Catalysis

Fu,

Yue,

Ren

et al. 2024

Angewandte Chemie

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Block copolymers, comprising polyether and polyolefin segments, are an important and promising category of functional materials. However, the lack of efficient strategies for the construction of polyether‐b‐polyolefin block copolymers have hindered the development of these materials. Herein, we propose a simple and efficient method to obtain various block copolymers through the copolymerization of epoxides and acrylates via bimetallic synergistic catalysis. The copolymerization of epoxides and acrylates proceeds in a sequence‐controlled manner, where the epoxides‐involved homo‐ or copolymerization occurs first, followed by the homopolymerization of acrylates initiated by the alkoxide species from the propagating polymer chain, thus yielding copolymers with a block structure. Notably, the high monomer compatibility of this powerful strategy provides a platform for synthesizing various polyacrylate‐based block copolymers comprising polyether, polycarbonate, polythiocarbonate, polyester, and polyurethane segments, respectively

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Micellisation of polystyrene-b-polyglycidol copolymers in water solution

Cited by 12 publications

References 45 publications

Poly(styrene/pentafluorostyrene)‐block‐poly(vinyl alcohol/vinylpyrrolidone) amphiphilic block copolymers for kinetic gas hydrate inhibitors: Synthesis, micellization behavior, and methane hydrate kinetic inhibition

Poly(styrene/pentafluorostyrene)‐block‐poly(vinyl alcohol/vinylpyrrolidone) amphiphilic block copolymers for kinetic gas hydrate inhibitors: Synthesis, micellization behavior, and methane hydrate kinetic inhibition

Micellization of Polystyrene-b-Polyglycidol in Dioxane and Water/Dioxane Solutions

A Powerful Strategy for Synthesizing Block Copolymers via Bimetallic Synergistic Catalysis

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