Synthesis and properties of heterografted toothbrush-like copolymers with alternating PEG and PCL grafts and tunable RAFT-generated segments

Tang, Dandan; Xiao, Jianzhong; Liu, Huanhuan; Li, Cangxia; Zhao, Youliang

doi:10.1039/c4py00332b

Cited by 25 publications

(18 citation statements)

References 80 publications

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“…The composition of monomer feed also plays an important role, when the proportion of maleic anhydride was large, the copolymerization rate was faster while the control over the molecular weight and molecular weight distribution was poor [65]. In addition to enhance the alternating behavior of the copolymerization, CRP also provides pathways to synthesize hybrid composites [66], nanostructures [57,67,68], and different architectures, such as polymer brushes [69,70], di-blocks [71], stars and Miktoarm stars [72], and hyperbranch structures [73].…”

Section: Traditional and Controlled Radical Copolymerization For Altementioning

confidence: 99%

Recent advances in alternating copolymers: The synthesis, modification, and applications of precision polymers

Huang

Turner

2017

Polymer

116

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Alternating copolymers represent a special class of copolymers, in which the two comonomers copolymerize in a regular alternating sequence along the chain. Their interesting physical and chemical properties, as well as the underlying mechanism, have attracted significant attention in both academia and industry. The electron-donor benzylidene monomers-styrene and stilbene, readily form alternating copolymers with the electron-acceptor monomersmaleic anhydride and N-substituted maleimides. The rich chemistry of the substitution groups on these monomers offers enormous combinations for the synthesis of alternating copolymers for different applications. In this paper, we aim to provide a general overview of recent publications on the specific field of these benzylidene-containing alternating copolymers, and the emphasis is placed on the synthetic progress, structure-property relationships, and the applications of these copolymers.

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Section: Traditional and Controlled Radical Copolymerization For Altementioning

confidence: 99%

Recent advances in alternating copolymers: The synthesis, modification, and applications of precision polymers

Huang

Turner

2017

Polymer

116

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“…Corresponding reaction converts a tertiary amine into a quaternary salt in the presence of an alkyl halide, and polar solvents accelerate the alkylation of amine structure. Ionic liquids, polymeric nanoparticles, and functional polymers can be easily produced by alkylation of amine species …”

Section: Introductionmentioning

confidence: 99%

Versatile light‐responsive organogels: Evaluation of their dye releasing and photoinitiation behaviors

Dashan

Elverici

Balta

et al. 2019

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

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Light-responsive crosslinked structures were prepared by a straightforward quaternization strategy using chloride functional polystyrene copolymers and commercially available Michler's ketone with varying feed ratios. Resulting organogels demonstrated excellent solvent absorption and their swelling characteristics were altered by UV-light irradiation. According to scanning electron microscope images, UVilluminated samples showed an obvious photodecomposition, which enhanced their solvent uptake capacity with increase of UV exposure. Additionally, release behavior of eosin Y as a model compound was determined by UV-vis and fluorescence spectrometers. Achieved photoactive gels were also employed as the reusable heterogeneous initiators for photoinduced free-radical polymerization of methyl methacrylate.

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“…So far Menschutkin chemistry has been applied to obtain various functional organic compounds using tertiary amines and alkyl halides . The corresponding chemical reaction converts tertiary amines to quaternary salts and the resultant compound may become hydrophilic depending on the chemical structures of the reactants.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of POSS hybrid organogels using Menschutkin quaternization chemistry

Kilic

Balta

Saloglu

et al. 2018

Polymer International

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The present research describes a series of organic–inorganic hybrid gels based on polystyrene and polyhedral oligomeric silsesquioxanes (POSSs) prepared using free radical copolymerization and Menschutkin chemistry techniques. In the first step, poly(styrene‐co‐chloromethylstyrene) is readily achieved by thermally initiated radical copolymerization and the subsequently obtained copolymer reacts with diethanolamine functional POSS nanoparticles which are employed as the crosslinker. The resulting hybrid network possesses ionic moieties and inorganic POSS nanoparticles. The POSS‐containing hybrid gels exhibit excellent organic solvent absorption and show good mechanical behaviour. Gel containing 0.8 × 10−3 mmol of POSS(DEA)8 (DEA, diethanolamine) reached the highest swelling ratio; hence, the corresponding gel can absorb organic solvent up to 20× its weight. The rate constant, coefficients and diffusional behaviour of hybrid organogels in organic solvent were examined as well. The organic solvent intake of the hybrid gel follows a non‐Fickian type diffusion. © 2018 Society of Chemical Industry

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Synthesis and properties of heterografted toothbrush-like copolymers with alternating PEG and PCL grafts and tunable RAFT-generated segments

Abstract: Novel (A-g-D)(B-alt-C)mD-type heterografted toothbrush-like copolymers with great potential in smart drug delivery systems and thermo-responsive surface materials are investigated.

Cited by 25 publications

References 80 publications

Recent advances in alternating copolymers: The synthesis, modification, and applications of precision polymers

Recent advances in alternating copolymers: The synthesis, modification, and applications of precision polymers

Versatile light‐responsive organogels: Evaluation of their dye releasing and photoinitiation behaviors

Synthesis and characterization of POSS hybrid organogels using Menschutkin quaternization chemistry

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