Umbrella-Star Block Copolymers

Wang, F.; Roovers, Jacques; Toporowski, P. M.

doi:10.1080/10601329508018987

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Thus, new polymer chains can originate, leading to the formation of the desired structure. Roovers et al , utilizing the convergent method synthesized umbrella-type copolymers of PS- b -PB. The 1,2-groups of the PB block were hydrosilylated to introduce Si–Cl groups, followed by coupling with living PB to afford the final structure (Scheme ).…”

Section: Branched Polymersmentioning

confidence: 99%

50th Anniversary Perspective: Polymers with Complex Architectures

et al. 2017

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The scope of this Perspective is to highlight innovative contributions in the synthesis of well-defined complex macromolecular architectures and to emphasize the importance of these materials to polymer physical chemistry, physics, theory, and applications. In addition, this Perspective tries to enlighten the past and show possible pathways for the future. Among the plethora of polymerization methods, we briefly report the impact of the truly living and controlled/ living polymerization techniques focusing mainly on anionic polymerization, the mother of all living and controlled/living polymerizations. Through anionic polymerization well-defined model polymers with complex macromolecular architectures having the highest molecular weight, structural and compositional homogeneity can be achieved. The synthesized structures include star, comb/graft, cyclic, branched and hyberbranched, dendritic, and multiblock multicomponent polymers. In our opinion, in addition to the work needed on the synthesis, properties, and application of copolymers with more than three chemically different blocks and complex architecture, the polymer chemists in the future should follow closer the approaches Nature, the perfect chemist, uses to make functional complex macromolecular structures by noncovalent chemistry. Moreover, development of new analytical methods for the characterization/purification of polymers with complex macromolecular architectures is essential for the synthesis and properties study of this family of polymeric materials.

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Section: Branched Polymersmentioning

confidence: 99%

50th Anniversary Perspective: Polymers with Complex Architectures

et al. 2017

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Star polystyrenes by anionic star–star coupling reactions with divinylbenzene

Lee¹,

Lee²,

Lee³

2006

J. Polym. Sci. A Polym. Chem.

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The incremental addition of divinylbenzene was used to generate star polystyrenes in a nearly full conversion of a living polystyrenyl anion. The dramatic increase in the molecular weight of the star polystyrenes with a limited supply of the living polystyrene supported the formation of gradient‐star polystyrenes through star–star coupling. The stoichiometric analysis of the star polymers revealed that their connection polymer had a shorter length than their branch polymer. The measured solution viscosity of the gradient‐star polymers greatly deviated from a linear correlation with the molecular weight and was in parallel to a theoretical simulation based on a highly branched structure of the gradient‐star polymer. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2579–2586, 2006

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Complex Branched Polymers

Theodosopoulos¹,

Pitsikalis²

2015

Anionic Polymerization

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Umbrella-Star Block Copolymers

Cited by 4 publications

References 9 publications

50th Anniversary Perspective: Polymers with Complex Architectures

50th Anniversary Perspective: Polymers with Complex Architectures

Star polystyrenes by anionic star–star coupling reactions with divinylbenzene

Complex Branched Polymers

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