Opportunities for dual RDRP agents in synthesizing novel polymeric materials

Pearson, Samuel; Thomas, Claude St; Guerrero‐Santos, Ramiro; D’Agosto, Franck

doi:10.1039/c7py00344g

Cited by 36 publications

(29 citation statements)

References 167 publications

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“…To eliminate this additional synthetic step and further mitigate the possibility of undesired side reactions and cross-reactivity, research has moved towards orthogonal polymerization techniques. As successful orthogonal polymerizations of block copolymers and bottlebrush copolymers via RDRPs have been reported [117][118][119][120][129][130][131][132][133][134], we can foresee growing opportunities for fabricating MPBs via SI-RDRPs with improved orthogonality.…”

Section: Sequential Surface-initiated Free-radical Polymerization (Simentioning

confidence: 99%

“…In contrast to SI-FRP, SI-RDRP (often also referred to as controlled radical polymerization, CRP [ 115 ]), provides good control over polymer chain lengths and architectures through controlled chain propagation by reversible activation/deactivation of a functional chain end [ 116 ]. By carefully selecting two RDRP mechanisms, sequential polymerization can be performed without interfering with the respectively other type of initiator/active chain end [ 117 , 118 , 119 , 120 ]. This approach has been used successfully for both co-deposited ( Figure 2 e) and bifunctional Y-shaped ( Figure 2 d) RDRP initiator-functionalized surfaces.…”

Section: Synthetic Routesmentioning

confidence: 99%

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Mixed Polymer Brushes for “Smart” Surfaces

Pester

2020

Polymers

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Mixed polymer brushes (MPBs) are composed of two or more disparate polymers covalently tethered to a substrate. The resulting phase segregated morphologies have been extensively studied as responsive “smart” materials, as they can be reversible tuned and switched by external stimuli. Both computational and experimental work has attempted to establish an understanding of the resulting nanostructures that vary as a function of many factors. This contribution highlights state-of-the-art MPBs studies, covering synthetic approaches, phase behavior, responsiveness to external stimuli as well as novel applications of MPBs. Current limitations are recognized and possible directions for future studies are identified.

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Section: Sequential Surface-initiated Free-radical Polymerization (Simentioning

confidence: 99%

Section: Synthetic Routesmentioning

confidence: 99%

Mixed Polymer Brushes for “Smart” Surfaces

Pester

2020

Polymers

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“…Living radical polymerization (LRP) is a useful method for preparing block copolymers . LRP is based on the reversible activation of a dormant species (Polymer−X) to a propagating radical (Polymer . )…”

Section: Methodsmentioning

confidence: 99%

Temperature‐Selective Dual Radical Generation from Alkyl Diiodide: Applications to Synthesis of Asymmetric CABC Multi‐Block Copolymers and Their Unique Assembly Structures

Zheng

Wang

Yamaguchi³

et al. 2018

Angewandte Chemie

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Temperature‐selective radical generation from a newly designed alkyl diiodide (I−R2−R1−I) was studied. R1−I and I−R2 had different reactivities for generating alkyl radicals in the presence of a tetraoctylammonium iodide (ONI) catalyst. Taking advantage of the temperature selectivity, we used the alkyl diiodide as a dual initiator in ONI‐catalyzed living radical polymerization to uniquely synthesize CABC non‐symmetric multi‐block copolymers. Because of their non‐symmetric structure, CABC multi‐block copolymers form unique assemblies, that is, Janus‐type particles with hetero‐segment coronas and flower‐like particles with hetero‐segment petals.

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“…Sometimes, the targeted molecular structure could not be synthesized by a single polymerization method, thus combining two or more synthetic methods is also a commonly adopted strategy in macromolecular engineering. ATRP can control the end and the side functional groups of polymer chains and is easy to switch to or to combine with other reaction mechanisms to obtain the targeted molecular architectures and functionalities [ 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Macromolecular Engineering by Applying Concurrent Reactions with ATRP

2020

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Modern polymeric material design often involves precise tailoring of molecular/supramolecular structures which is also called macromolecular engineering. The available tools for molecular structure tailoring are controlled/living polymerization methods, click chemistry, supramolecular polymerization, self-assembly, among others. When polymeric materials with complex molecular architectures are targeted, it usually takes several steps of reactions to obtain the aimed product. Concurrent polymerization methods, i.e., two or more reaction mechanisms, steps, or procedures take place simultaneously instead of sequentially, can significantly reduce the complexity of the reaction procedure or provide special molecular architectures that would be otherwise very difficult to synthesize. Atom transfer radical polymerization, ATRP, has been widely applied in concurrent polymerization reactions and resulted in improved efficiency in macromolecular engineering. This perspective summarizes reported studies employing concurrent polymerization methods with ATRP as one of the reaction components and highlights future research directions in this area.

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Opportunities for dual RDRP agents in synthesizing novel polymeric materials

Abstract: Dual RDRP agents provide access to new polymeric materials by combining ATRP, NMP, and RAFT polymerization without end group transformations.

Cited by 36 publications

References 167 publications

Mixed Polymer Brushes for “Smart” Surfaces

Mixed Polymer Brushes for “Smart” Surfaces

Temperature‐Selective Dual Radical Generation from Alkyl Diiodide: Applications to Synthesis of Asymmetric CABC Multi‐Block Copolymers and Their Unique Assembly Structures

Macromolecular Engineering by Applying Concurrent Reactions with ATRP

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