Synthesis of gradient copolysiloxanes by simultaneous copolymerization of cyclotrisiloxanes and mechanism for kinetics inverse between anionic and cationic ring‐opening polymerization

Fei, Hua‐Feng; Han, Xu; Liu, Bozheng; Gao, Xiyin; Wang, Qian; Zhang, Zhijie; Xie, Zuowei

doi:10.1002/pola.27921

Cited by 6 publications

(1 citation statement)

References 44 publications

(122 reference statements)

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“…The universal strategy developed in this study provides a platform for the development of innovative silicone copolymers with controlled structure and performance. Fei H.F. et al [157] obtained trifluoropropylmethylsiloxane-phenylmethylsiloxane gradient copolysiloxanes by copolymerization of 1,3,5-tris(trifluoropropylmethyl)cyclotrisiloxane (D3 F ) and phenylmethylcyclotrisiloxane (DPhrisiloxane) (Figure 38). An analysis of the reactivity ratios showed that the reactivity of D3 F with respect to anionic ROP is higher than that of D3 Ph ; however, D 3 F showed lower reactivity compared to D3 Ph during cationic ROP.…”

Section: Catalytic Rearrangement Reactions For the Preparation Of Pdm...mentioning

confidence: 99%

Ring-Opening Polymerization (ROP) and Catalytic Rearrangement as a Way to Obtain Siloxane Mono- and Telechelics, as Well as Well-Organized Branching Centers: History and Prospects

et al. 2022

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PDMS telechelics are important both in industry and in academic research. They are used both in the free state and as part of copolymers and cross-linked materials. At present, the most important, practically used, and well-studied method for the preparation of such PDMS is diorganosiloxane ring-opening polymerization (ROP) in the presence of nucleophilic or electrophilic initiators. In our brief review, we reviewed the current advances in the field of obtaining polydiorganosiloxane telechelics and monofunctional PDMS, as well as well-organized branching centers by the ROP mechanism and catalytic rearrangement, one of the first and most important reactions in the polymer chemistry of silicones, which remains so at the present time.

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Section: Catalytic Rearrangement Reactions For the Preparation Of Pdm...mentioning

confidence: 99%

Ring-Opening Polymerization (ROP) and Catalytic Rearrangement as a Way to Obtain Siloxane Mono- and Telechelics, as Well as Well-Organized Branching Centers: History and Prospects

et al. 2022

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Ionic and Coordination Ring‐Opening Polymerization

Penczek¹,

Biela²,

Cypryk³

et al. 2022

Macromolecular Engineering

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This article provides the up‐to‐date and comprehensive review (over 700 citations) of all the important subjects of the ring‐opening polymerization (ROP) methods of polymers syntheses. This is the method of synthesis of several important classes of polymers that cannot be prepared in a different way (e.g., polyethers). It also complements known methods of polycondensation and ROP often is the method of choice. ROP is particularly important in syntheses of the biodegradable polymers‐polylactide and poly(ε‐caprolactone), discussed in details. Applications of these polymers, as well as polysiloxanes in biomedical applications are irreplaceable in the modern medicine. Either as bulk polymers or as nano‐ and microspheres, described In this article separately. There are sections in the present version that were not presented in the previous editions. This is description of polyoxazolines, polymers with phosphorus atoms in the chains, as well as mentioned above polysiloxanes an microspheres. We introduced also section describing novel analytical methods, particularly useful in studies of polymers with various architectures (star shape, multibranched etc.). Besides the synthetic aspects of ROP, this article describes thermodynamics and kinetic features of the living/controlled polymerizations, particularly by activated monomer mechanism and importance of dormant polymers in precision syntheses of desired structures.

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A review of poly[(3,3,3-trifluoropropyl)methylsiloxane]: Synthesis, properties and applications

Yang

Bai

Meng

et al. 2022

European Polymer Journal

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Synthesis of gradient copolysiloxanes by simultaneous copolymerization of cyclotrisiloxanes and mechanism for kinetics inverse between anionic and cationic ring‐opening polymerization

Cited by 6 publications

References 44 publications

Ring-Opening Polymerization (ROP) and Catalytic Rearrangement as a Way to Obtain Siloxane Mono- and Telechelics, as Well as Well-Organized Branching Centers: History and Prospects

Ring-Opening Polymerization (ROP) and Catalytic Rearrangement as a Way to Obtain Siloxane Mono- and Telechelics, as Well as Well-Organized Branching Centers: History and Prospects

Ionic and Coordination Ring‐Opening Polymerization

A review of poly[(3,3,3-trifluoropropyl)methylsiloxane]: Synthesis, properties and applications

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