Block polymers of isocyanates and vinyl monomers by homogeneous anionic polymerization

Godfrey, R. A.; Miller, Gerald W.

doi:10.1002/pol.1969.150070833

Cited by 34 publications

(18 citation statements)

References 15 publications

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“…The first polyisocyanate‐based rod–coil block copolymer was reported more than 50 years ago . The functional nature of rod blocks makes rod–coil block copolymers promising for numerous applications: organic electronics, biotechnology, and many others .…”

Section: Rod–coil Systemsmentioning

confidence: 99%

Discovery of Structural Complexity through Self‐Assembly of Molecules Containing Rodlike Components

Zhang

Yan

et al. 2020

Chemistry A European J

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Hierarchicals tructures are important for transferring and amplifying molecular functions to macroscopic properties of materials. In this regard,r odlikem olecules have emerged as one of the most promising molecular building blockst oc onstruct functional materials. Although the self-assembly of conventional molecules containing rodlike components generally results in nematic or layered smectic phases, due to the preferred parallel arrangements of rodlikec omponents, extensive efforts have revealed that rational molecular design provides aversatile platform to en-gineer richs elf-assembled structures. Herein, first successes achieved in polyphilic liquid crystals and rod-coil block systems are summarized.S pecial attention is paidt or ecent progress in the conjugation of rodlikeb uilding blocks with other molecular building blocks through the molecular Lego approach. Rod-based giant surfactants, sphere-rod conjugates, and dendritic rodlike molecules are covered. Future perspectives of the self-assembly of molecules containing rodlike components are also provided.[a] Dr.Figure 7. Perforated lamellar phase observedi nrod-coil diblock oligomers. a) TEM image of as olution-cast thin film stained with RuO 4 .b)Aselectedarea electron diffraction pattern of an unstained film. c)SAXS pattern. d) Schematic representation of perforated lamellar phasesf ormed by rodcoil diblocko ligomers. The rod segmentsa re alignedaxially perpendicular to the layer plane with ah erringbone arrangement. Reprinted with permission from ref. [35].

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Section: Rod–coil Systemsmentioning

confidence: 99%

Discovery of Structural Complexity through Self‐Assembly of Molecules Containing Rodlike Components

Zhang

Yan

et al. 2020

Chemistry A European J

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“…Block copolymers are obtained from aromatic diisocyanates and vinyl monomers, such as styrene, isoprene, and methyl methacrylate via anionic polymerization, using n-butyllithium as initiator (71). Since TDI undergoes selective reaction through the nonhindered isocyanato group poly(butadiene-block-imide) block copolymers are obtained (72).…”

Section: Isocyanate-derived Polymersmentioning

confidence: 99%

Isocyanate‐Derived Polymers

Ulrich

2002

Encyclopedia of Polymer Science and Technology

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Homo‐ and copolymers derived from mono‐ and diisocyanates are treated in this article. Also, addition, condensation, and addition/condensation polymers derived from diisocyanates are included. Of commercial interest are segmented block copolyamide elastomers produced from methylene di‐ p ‐phenylene isocyanate (MDI) and macrodicarboxylic acids and dicarboxylic acids. This reaction polymerization is conducted in a vented extruder or in solution. Also, engineering plastics are obtained from diisocyanates and dicarboxylic acids. Poly(amide imides) and poly(imides) are produced from MDI and TDI (toluene diisocyanate) and trimellitic acid anhydride and isophthalic acid and dianhydrides, respectively. Heterocyclic polymers with useful high temperature properties made from MDI and suitable monomers by a polyaddition/condensation reaction are also included.

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“…The rod–coil block copolymers containing conjugated blocks allow direct control of their self‐assembled morphology in the solid state, and thus tune the optoelectronic properties on the nanoscale . Therefore, since the first report in 1969, rod–coil block copolymers have been of interest for almost 40 years.…”

Section: Introductionmentioning

confidence: 99%

Dissipative Particle Dynamics Simulation on Self‐Assembly Behavior of Rod–Coil–Rod Triblock Copolymer in Solutions

Zhou

Song

Long

et al. 2014

Macro Theory & Simulations

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Self‐assembly behaviors of rod–coil–rod triblock copolymers in the selective solvent are systematically investigated by dissipative particle dynamic simulations. Three selective solvents are considered: the pure coil‐selective solvent, the pure rod‐selective solvent, and the mixed solvent. The concentration‐induced morphologies and morphological transition affected by the rod and coil length are examined. The micelle adopts the overall shape of sphere, nematic bundle, worm, cylinder, lamella, coil‐, and rod‐aggregated hollow cylinders, and network. In the coil‐selective solvent, increasing coil length can defer the phase transition from sphere to other morphologies while increasing rod length can advance the transition. In the rod‐selective solvent, an opposite influence rule is found.

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Block polymers of isocyanates and vinyl monomers by homogeneous anionic polymerization

Cited by 34 publications

References 15 publications

Discovery of Structural Complexity through Self‐Assembly of Molecules Containing Rodlike Components

Discovery of Structural Complexity through Self‐Assembly of Molecules Containing Rodlike Components

Isocyanate‐Derived Polymers

Dissipative Particle Dynamics Simulation on Self‐Assembly Behavior of Rod–Coil–Rod Triblock Copolymer in Solutions

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