Polymerization-induced self-assembly of liquid crystalline ABC triblock copolymers with long solvophilic chains

Huo, Meng; Wan, Zhengyi; Zeng, Min; Wei, Yen; Yuan, Jinying

doi:10.1039/c8py00643a

Cited by 22 publications

(21 citation statements)

References 59 publications

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“…In addition to solvophilic/solvophobic interactions, many other factors can also greatly influence and promote PISA process during polymerization, such as liquid crystalline ordering [ 119 ], polyion complexation [ 120 ] and host-guest interactions [ 121 ], demonstrating the versatility of the PISA method. The influence factors can be roughly divided into the intrinsic and extrinsic factors, due to the difference in intrinsic architecture and nature of polymers and extrinsic conditions.…”

Section: Basic Concepts Related To Supramolecular Chiralitymentioning

confidence: 99%

Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy

Cheng

Miao

Qian

et al. 2020

IJMS

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Recently, the design of novel supramolecular chiral materials has received a great deal of attention due to rapid developments in the fields of supramolecular chemistry and molecular self-assembly. Supramolecular chirality has been widely introduced to polymers containing photoresponsive azobenzene groups. On the one hand, supramolecular chiral structures of azobenzene-containing polymers (Azo-polymers) can be produced by nonsymmetric arrangement of Azo units through noncovalent interactions. On the other hand, the reversibility of the photoisomerization also allows for the control of the supramolecular organization of the Azo moieties within polymer structures. The construction of supramolecular chirality in Azo-polymeric self-assembled system is highly important for further developments in this field from both academic and practical points of view. The postpolymerization self-assembly strategy is one of the traditional strategies for mainly constructing supramolecular chirality in Azo-polymers. The in situ supramolecular self-assembly mediated by polymerization-induced self-assembly (PISA) is a facile one-pot approach for the construction of well-defined supramolecular chirality during polymerization process. In this review, we focus on a discussion of supramolecular chirality of Azo-polymer systems constructed by traditional postpolymerization self-assembly and PISA-mediated in situ supramolecular self-assembly. Furthermore, we will also summarize the basic concepts, seminal studies, recent trends, and perspectives in the constructions and applications of supramolecular chirality based on Azo-polymers with the hope to advance the development of supramolecular chirality in chemistry.

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Section: Basic Concepts Related To Supramolecular Chiralitymentioning

confidence: 99%

Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy

Cheng

Miao

Qian

et al. 2020

IJMS

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“…However, PTFEMA does not contain enough fluorine atoms to completely phase separate from PBzMA. Later Yuan and co-workers reported in several studies that if the fluorine content of the core-forming block was increased, phase separation took place and that non-classical morphologies could be obtained [ 28 , 29 , 30 , 31 ]. They demonstrated this with semi-fluorinated methacrylates bearing 9, 13 and 17 fluorine atoms.…”

Section: Introductionmentioning

confidence: 99%

Semi-Fluorinated Di and Triblock Copolymer Nano-Objects Prepared via RAFT Alcoholic Dispersion Polymerization (PISA)

et al. 2021

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A set of well-defined amphiphilic, semi-fluorinated di and triblock copolymers were synthesized via polymerization-induced self-assembly (PISA) under alcoholic dispersion polymerization conditions. This study investigates the influence of the length, nature and position of the solvophobic semi-fluorinated block. A poly(N,N-dimethylaminoethyl methacrylate) was used as the stabilizing block to prepare the di and tri block copolymer nano-objects via reversible addition-fragmentation chain transfer (RAFT) controlled dispersion polymerization at 70 °C in ethanol. Benzylmethacrylate (BzMA) and semi-fluorinated methacrylates and acrylates with 7 (heptafluorobutyl methacrylate (HFBMA)), 13 (heneicosafluorododecyl methacrylate (HCFDDMA)) and 21 (tridecafluorooctyl acrylate (TDFOA)) fluorine atoms were used as monomers for the core-forming blocks. The RAFT polymerization of these semi-fluorinated monomers was monitored by SEC and 1H NMR. The evolution of the self-assembled morphologies was investigated by transmission electron microscopy (TEM). The results demonstrate that the order of the blocks and the number of fluorine atoms influence the microphase segregation of the core-forming blocks and the final morphology of the nano-objects.

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“…Recently, through reversible-deactivation radical polymerizations (RDRPs), researchers could manipulate the topological structure of polymers to optimize the critical aggregation state. [13][14][15][16][17][18][19][20][21] Among them, the more compact conformation and three-dimensional spheroidal shape of the star polymer give it special physical-chemical properties, [22,23] such as smaller hydrodynamic volume and diffusion coefficient, lower viscosity, low glass transition temperature, and high functionality. [24][25][26] Whittaker et al synthesized Nisopropylacrylamide (NIPAM) star polymers through the use of an 4-arm RAFT agent.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of star-shaped polyzwitterions with adjustable UCST and fast responsiveness by a facile RAFT polymerization

Sun

et al. 2020

Polym. Chem.

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Polymerization-induced self-assembly of liquid crystalline ABC triblock copolymers with long solvophilic chains

Abstract: Polymerization-induced self-assembly was exploited to investigate the self-assembly behavior of liquid crystalline triblock copolymers with long solvophilic chains.

Cited by 22 publications

References 59 publications

Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy

Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy

Semi-Fluorinated Di and Triblock Copolymer Nano-Objects Prepared via RAFT Alcoholic Dispersion Polymerization (PISA)

Synthesis of star-shaped polyzwitterions with adjustable UCST and fast responsiveness by a facile RAFT polymerization

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