Functionalization of Poly(ether imide) Membranes via Surface-Initiated Atom-Transfer Radical Polymerization and their Use in Antifouling

Li, Liang; Yan, Guoping; Wu, Jiangyu; Yu, Xianghua; Guo, Qingzhong

doi:10.1177/0954008308095288

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…Among several approaches, atom-transfer radical polymerization (ATRP) has proven to be a valid tool for initiating polymerization for a wide range of monomers and even water can be used as the solvent for ATRP [23,24]. There are several studies on ATRP to fabricate hydrophilic and antifouling membranes [25][26][27]. For example, Chiang et al [27] grafted sulfobetaine methacrylate (SBMA) on the surface of poly(vinylidene fluoride) (PVDF) membrane with the ATRP method, and found that hardly any bovine serum albumin (BSA) adsorption was observed and the adsorption of c-globulin was also greatly reduced after SBMA grafting.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the hydrophilic and antifouling properties of polypropylene nonwoven fabric membranes by the grafting of poly(N-vinyl-2-pyrrolidone) via the ATRP method

Wang

Feng

Yang

2011

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Enhancing the hydrophilic and antifouling properties of polypropylene nonwoven fabric membranes by the grafting of poly(N-vinyl-2-pyrrolidone) via the ATRP method

Wang

Feng

Yang

2011

Journal of Colloid and Interface Science

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“…A few examples include self-assembled monolayer of thiols on gold, − chlorosilanes on silicon oxide surfaces, − and alkyl cations through ion exchange on mica and montmorillonite . Surface functional groups of polymeric materials such as cellulose, chitosan, poly(ether imide), and graphene oxide have also been chemically modified to introduce ATRP initiators. Recently, aryldiazonium-based compounds − have been successfully employed to introduce initiators on conducting substrates such as metals and glassy carbon (GC) through an electrochemical approach.…”

Section: Introductionmentioning

confidence: 99%

On Surface-Initiated Atom Transfer Radical Polymerization Using Diazonium Chemistry To Introduce the Initiator Layer

et al. 2010

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This work features the controllability of surface-initiated atom transfer radical polymerization (SI-ATRP) of methyl methacrylate, initiated by a multilayered 2-bromoisobutyryl moiety formed via diazonium chemistry. The thickness as a function of polymerization time has been studied by varying different parameters such as the bromine content of the initiator layer, polarity of reaction medium, ligand type (L), and the ratio of activator (Cu(I)) to deactivator (Cu(II)) in order to ascertain the controllability of the SI-ATRP process. The variation of thickness versus surface concentration of bromine shows a gradual transition from mushroom to brush-type conformation of the surface anchored chains in both polar and nonpolar reaction medium. Interestingly, it is revealed that very thick polymer brushes, on the order of 1 μm, can be obtained at high bromine content of the initiator layer in toluene. The initial polymerization rate and the overall final thickness are higher in the case of nonpolar solvent (toluene) compared to polar medium (acetonitrile or N,N-dimethylformamide). The ligand affects the initial rate of polymerization, which correlates with the redox potentials of the pertinent Cu(II)/Cu(I) complexes (L = Me(6)TREN, PMDETA, and BIPY). It is also observed that the ability of polymer brushes to reinitiate depends on the initial thickness and the solvent used for generating it.

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“…Poly(ether imide) (PEI) was chloromethylated with the paraformaldehyde/ Me 3 SiCl/SnCl 4 system in chloroform at 50 • C and for 24 h [91]. The degree of chloromethylation, estimated as the number of chloromethyl groups per repeat unit of PEI, was about 0.22.…”

Section: Paraformaldehyde/me 3 Six a Halomethylating Agentmentioning

confidence: 99%

Towards Halomethylated Benzene-Bearing Monomeric and Polymeric Substrates

Moulay

2011

Designed Monomers and Polymers

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This paper presents the trends in the halomethylation reaction of aromatic hydrocarbons and polymeric analogues. Much interest is devoted to the chloromethylation vis-à-vis other halomethylations, even though the incorporated chloromethyl group is the least chemically reactive among the common halomethyl groups (CH 2 Cl, CH 2 Br, CH 2 I). While bromomethylation stands second behind chloromethylation in terms of chemists' interest, a few cases of iodomethylation are cited, and only one case of fluoromethylation was reported. Various halomethylating systems have been devised, starting from the early one, paraformaldehyde/hydrogen halide, then those involving the in situ formation of halomethyl methyl ether (HalMME), and ending with those giving rise to other intermediate halomethylating species. Halomethylated aromatic polymers, including even the fluoromethylated ones, can be achieved by other means, such as polymerization of halomethyl-containing monomers, halogenation of pendent methyl groups and halogen exchange reaction (halex reaction) within halomethyl groups. Reaction conditions, i.e., solvents, catalysts and promoters, are surveyed. Exploitation of the concomitant Friedel-Crafts alkylation in the course of halomethylation is illustrated by some examples. In addition, the quaternization of halomethylated aromatic polymers (particularly the chloromethylation) is inevitably linked to halomethylation; thus, it is selectively evoked to valorize further the halomethylation reaction.

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Functionalization of Poly(ether imide) Membranes via Surface-Initiated Atom-Transfer Radical Polymerization and their Use in Antifouling

Cited by 10 publications

References 26 publications

Enhancing the hydrophilic and antifouling properties of polypropylene nonwoven fabric membranes by the grafting of poly(N-vinyl-2-pyrrolidone) via the ATRP method

Enhancing the hydrophilic and antifouling properties of polypropylene nonwoven fabric membranes by the grafting of poly(N-vinyl-2-pyrrolidone) via the ATRP method

On Surface-Initiated Atom Transfer Radical Polymerization Using Diazonium Chemistry To Introduce the Initiator Layer

Towards Halomethylated Benzene-Bearing Monomeric and Polymeric Substrates

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