The systematic study of the microstructure of crosslinked copolymers from siloxane macromonomers and methacrylates by changes in composition and components

Yokota, Mitsuru; Miwa, Yuko; Ajiro, Hiroharu; Akashi, Mitsuru

doi:10.1038/pj.2011.143

Cited by 5 publications

(5 citation statements)

References 18 publications

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“…GPC using RI detection generated chromatograms that showed a degree of bimodal character and higher than expected polydispersities. However, this is typical of diblock polymers that possess polymer blocks with very different refractive indices . For example, Armes et al also reported bimodal peaks when studying the GPC properties of a series of fluoro-containing diblock polymers .…”

Section: Resultsmentioning

confidence: 99%

“…However, this is typical of diblock polymers that possess polymer blocks with very different refractive indices. 16 For example, Armes et al also reported bimodal peaks when studying the GPC properties of a series of fluoro-containing diblock polymers. 17 In our case the refractive index of the PTFEMA block is 1.41, and this is much lower than the refractive index of poly(ethylene glycol), which is 1.47.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Increased Oxygen Solubility in Aqueous Media Using PEG–Poly-2,2,2-trifluoroethyl Methacrylate Copolymer Micelles and Their Potential Application As Volume Expanders and As an Artificial Blood Product

Fan

Alghassab

Twyman

2018

ACS Appl. Bio Mater.

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One of the most important functions of blood is to solubilize and distribute oxygen within the body. As such, it is vital that this property is replicated (safely) by any artificial blood product. In this paper, we describe the facile synthesis of a series of simple diblock polymers capable of selfassembling into micellar structures at concentrations around 3×10-3 mg/mL. Using a dissolved oxygen meter, we were able to demonstrate that aqueous solutions of these aggregated structures could retain oxygen and release it (into the aqueous bulk phase). The increased oxygen retention was quantified by measuring the rate of oxygen release and its half-life. These experiments indicated that oxygen retention/binding was dependent on the fluorine concentration. 19 F NMR experiments on a micellar solution saturated with oxygen showed small upfield shifts in the fluorine peaks, which provided qualitative evidence that indicated oxygen binding occurred within the fluorine region of the polymer aggregates. Using a modified enzyme/glucose oxidation assay, we were able to establish that the aqueous oxygen concentrations were 33% higher in a solution of polymer.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Increased Oxygen Solubility in Aqueous Media Using PEG–Poly-2,2,2-trifluoroethyl Methacrylate Copolymer Micelles and Their Potential Application As Volume Expanders and As an Artificial Blood Product

Fan

Alghassab

Twyman

2018

ACS Appl. Bio Mater.

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“…Silicone-acrylic block, segmented and graft copolymers and interpenetrating networks have also been extensively investigated . In addition to basic studies on the composition dependent structure-morphology-surface behavior (270,274,276,281,282,284,285,290), these materials were also investigated as protective coatings (271,279,287), adhesives (273,277,283), membranes (286,288,289)and biomaterials (268,272).…”

Section: Figure 19mentioning

confidence: 99%

Silicone containing copolymers: Synthesis, properties and applications

Yılgör

2014

Progress in Polymer Science

455

322

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A comprehensive survey of the recent developments on the synthesis, properties and applications of silicone containing copolymers is provided. Influence of (−R 2 Si−O−) backbone composition on the physicochemical properties of silicone copolymers, such as thermal transitions, solubility parameter and surface tension is discussed. Preparation and properties of well-defined α,ω-reactive organofunctionally terminated (telechelic) silicone oligomers and their utilization in the preparation of a wide range of block and segmented copolymers through step-growth,anionic, ring-opening and living free-radicalpolymerization techniques are provided. Use of silicone oligomers in the modification of polymeric network structures is also discussed. Special emphasis is given to the discussion of the effect of silicone oligomer and organic segment structure and molecular weight on the morphology and surface and bulk properties of the resultant silicone containing copolymers and networks.

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“…TFEMA is utilized in various commercial applications because of its relatively low refractive index. [48][49][50][51] As we shall see, this particular monomer/solvent combination offers a unique opportunity to perform comparative experiments that shed new light on how RAFT dispersion polymerizations differ from conventional RAFT solution polymerizations.…”

Section: Introductionmentioning

confidence: 99%

Comparison of pseudo-living character of RAFT polymerizations conducted under homogeneous and heterogeneous conditions

2014

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The systematic study of the microstructure of crosslinked copolymers from siloxane macromonomers and methacrylates by changes in composition and components

Cited by 5 publications

References 18 publications

Increased Oxygen Solubility in Aqueous Media Using PEG–Poly-2,2,2-trifluoroethyl Methacrylate Copolymer Micelles and Their Potential Application As Volume Expanders and As an Artificial Blood Product

Increased Oxygen Solubility in Aqueous Media Using PEG–Poly-2,2,2-trifluoroethyl Methacrylate Copolymer Micelles and Their Potential Application As Volume Expanders and As an Artificial Blood Product

Silicone containing copolymers: Synthesis, properties and applications

Comparison of pseudo-living character of RAFT polymerizations conducted under homogeneous and heterogeneous conditions

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