Synthesis of Branched Polyimides of Different Topological Structure

Кузнецов, А. А.; Soldatova, A. E.; Tsegelskaya, A. Yu.; Semenova, G. K.

doi:10.1134/s1811238220020083

Cited by 2 publications

(2 citation statements)

References 83 publications

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“…Various dendrimers, including polyamidoamine (PAMAM), poly(propylene imine) (PPI), poly(ester amides) and phosphorus dendrimers, have been synthesized since the hyperbranched polymers were first defined by Flory in 1952 [22][23][24][25]. Some of these highly branched polymer modified substrates have been extensively used to construct biosensors and/or as drug carriers because polymers with different core structures, terminal groups, generations and grades of purity are commercially available [1,11,12,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40].…”

Section: Branched Polymersmentioning

confidence: 99%

The Bioanalytical and Biomedical Applications of Polymer Modified Substrates

Sun

2022

Polymers

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Polymers with different structures and morphology have been extensively used to construct functionalized surfaces for a wide range of applications because the physicochemical properties of polymers can be finely adjusted by their molecular weights, polydispersity and configurations, as well as the chemical structures and natures of monomers. In particular, the specific functions of polymers can be easily achieved at post-synthesis by the attachment of different kinds of active molecules such as recognition ligand, peptides, aptamers and antibodies. In this review, the recent advances in the bioanalytical and biomedical applications of polymer modified substrates were summarized with subsections on functionalization using branched polymers, polymer brushes and polymer hydrogels. The review focuses on their applications as biosensors with excellent analytical performance and/or as nonfouling surfaces with efficient antibacterial activity. Finally, we discuss the perspectives and future directions of polymer modified substrates in the development of biodevices for the diagnosis, treatment and prevention of diseases.

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Section: Branched Polymersmentioning

confidence: 99%

The Bioanalytical and Biomedical Applications of Polymer Modified Substrates

Sun

2022

Polymers

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“…The synthesis and investigation of new functional materials, such as highly and hyperbranched polymers has attracted considerable attention in the last few years [ 1 , 2 , 3 , 4 ]. Hyperbranched polymers with many functional end-groups are considered as promising materials for design of ecological flame-retardant polyurethanes [ 5 ], new catalytic systems [ 6 ], biomaterials [ 7 ], and other applications [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

One-Pot Synthesis of Hyperbranched Polyurethane-Triazoles with Controlled Structural, Molecular Weight and Hydrodynamic Characteristics

et al. 2022

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We report a simple and convenient approach to the one-pot synthesis of hyperbranched polyurethane-triazoles with desirable properties. This method is based on in situ generation of an AB2 + A2 + B4 azide-acetylene monomer mixture of known composition, due to quantitative reactions of urethane formation between isophorone diisocyanate (IPDI), 1,3-diazidopropanol-2 (DAPOL) (in the first stage) and propargyl alcohol (in the second stage). The obtained monomer mixture can be involved in step-growth polymerization by azide-alkyne cycloaddition without additional purification (in the third stage). The properties of the resulting polymers should depend on the composition of the monomer mixture. Therefore, first the model revealing the correlation between the monomer composition and the ratio and reactivity of the IPDI and DAPOL active groups is developed and proven. In addition, the newly developed structural kinetic model considering the substitution effect at polyaddition of the complex mixture of monomers allows the prediction of the degree of branching of the target polymer. Based on our calculations, the hyperbranched polyurethane-triazoles were synthesized under found conditions. All products were characterized by 1H NMR, FTIR, SEC, DLS, DSC, TGA and viscometry methods. It was shown that the degree of branching, molecular weight, intrinsic viscosity, and hydrodynamic radius of the final hyperbranched polymers can be specified at the first stage of one-pot synthesis. The obtained hyperbranched polyurethane-triazoles showed a degree of branching from 0.21 to 0.44 (calculated DB-0.25 and 0.45, respectively).

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Synthesis of Branched Polyimides of Different Topological Structure

Cited by 2 publications

References 83 publications

The Bioanalytical and Biomedical Applications of Polymer Modified Substrates

The Bioanalytical and Biomedical Applications of Polymer Modified Substrates

One-Pot Synthesis of Hyperbranched Polyurethane-Triazoles with Controlled Structural, Molecular Weight and Hydrodynamic Characteristics

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