Solubility of fluorinated homopolymer and block copolymer in compressed CO2

André, Pascal; Lacroix‐Desmazes, Patrick; Taylor, Darlene K.; Boutevin, Bernard

doi:10.1016/j.supflu.2005.08.007

Cited by 35 publications

(33 citation statements)

References 46 publications

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“…This implies that different molecular compositions of polymers can lead to different interactions with CO 2 . The solubility of fluorinated polymers and block copolymers in compressed CO 2 has been widely investigated [75,76] because of the significant chemical interactions between fluorine-containing polymers and CO 2 . These interactions may be of a Lewis acid/base nature.…”

Section: Theory On Polymer/co 2 Interactions and Co 2 -Philic Polymersmentioning

confidence: 99%

Polymer nano-foams for insulating applications prepared from CO2 foaming

Forest

Chaumont

Cassagnau

et al. 2015

Progress in Polymer Science

261

166

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Section: Theory On Polymer/co 2 Interactions and Co 2 -Philic Polymersmentioning

confidence: 99%

Polymer nano-foams for insulating applications prepared from CO2 foaming

Forest

Chaumont

Cassagnau

et al. 2015

Progress in Polymer Science

261

166

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“…The latter was used to prevent any undesirable damage of the stainless‐steel reactor in case of release of hydriodic acid (HI) during the polymerization. The solubility of both monomer and polymer PFDA has already been proved in scCO 2 under these conditions . One of the key parameter in RITP is the [initiator]:[I 2 ] molar ratio as it determines the duration of the “induction period” as well as the subsequent kinetics of the polymerization.…”

Section: Resultsmentioning

confidence: 99%

Reverse Iodine Transfer Polymerization (RITP) of 1,1,2,2‐Tetrahydroperfluorodecyl Acrylate in Supercritical Carbon Dioxide

Bouilhac

Chirat

Joly‐Duhamel

et al. 2013

Macro Chemistry & Physics

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Reverse iodine transfer polymerization (RITP) of 1,1,2,2‐tetrahydroperfluorodecyl acrylate (FDA) is successfully performed in supercritical carbon dioxide (scCO2) at 70 °C under a CO2 pressure of 300 bar. PolyFDA (PFDA) of increasing molecular weights (from 10 000 to 100 000 g mol−1) is synthesized with good agreement between theoretical, 1H NMR spectroscopy and and size exclusion chromatography/refractive index/right‐angle laser‐light scattering/differential viscometer (SEC/RI/RALLS/DV)‐estimated molecular weights (M¯n). Furthermore, the increase of M¯n goes with a decrease of the dispersity of the polymers (Đ from 2.06 to 1.33), which is consistent with a controlled radical polymerization (CRP). Lastly, the structure of final PFDA and therefore the RITP process are confirmed by matrix‐assisted laser desorption ionization time‐of‐flight mass spectrometry (MALDI‐TOF MS) analyses.

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“…2,70 There is a general lack of CO 2 -soluble polymers, and the polymeric stabilizers normally used are diblock copolymers comprising a CO 2 -philic segment which is almost always a siloxane or fluorocarbon, and a CO 2 -phobic segment to interact with the polymer particle. 2,[71][72][73][74][75] Random copolymers containing a fluorinated acrylate have also been used with success, 76 as well as ionic hydrocarbon surfactants containing CO 2 -philic PVAc units. 77 The high cost of fluorinated colloidal stabilizers has led to a tendency towards the use of cheaper siloxane-based alternatives.…”

Section: As Polymerization Mediummentioning

confidence: 99%

Controlled/living heterogeneous radical polymerization in supercritical carbon dioxide

Zetterlund

Aldabbagh

Okubo

2009

J. Polym. Sci. A Polym. Chem.

105

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Supercritical carbon dioxide (scCO 2 ) is an inexpensive and environmentally friendly medium for radical polymerizations. ScCO 2 is suited for heterogeneous controlled/living radical polymerizations (CLRPs), since the monomer, initiator, and control reagents (nitroxide, etc.) are soluble, but the polymer formed is insoluble beyond a critical degree of polymerization (J crit ). The precipitated polymer can continue growing in (only) the particle phase giving living polymer of controlled well-defined microstructure. The addition of a colloidal stabilizer gives a dispersion polymerization with well-defined colloidal particles being formed. In recent years, nitroxide-mediated polymerization (NMP), atom transfer radical polymerization (ATRP), and reversible addition fragmentation chain transfer (RAFT) polymerization have all been conducted as heterogeneous polymerizations in scCO 2 . This Highlight reviews this recent body of work, and describes the unique characteristics of scCO 2 that allows composite particle formation of unique morphology to be achieved.

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Solubility of fluorinated homopolymer and block copolymer in compressed CO2

Cited by 35 publications

References 46 publications

Polymer nano-foams for insulating applications prepared from CO2 foaming

Polymer nano-foams for insulating applications prepared from CO2 foaming

Reverse Iodine Transfer Polymerization (RITP) of 1,1,2,2‐Tetrahydroperfluorodecyl Acrylate in Supercritical Carbon Dioxide

Controlled/living heterogeneous radical polymerization in supercritical carbon dioxide

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