A convenient synthesis strategy for microphase-separating functional copolymers: the cyclohydrocarbosilane tool box

Rittscher, Valentina; Gallei, Markus

doi:10.1039/c5py00065c

Cited by 11 publications

(14 citation statements)

References 78 publications

(134 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One convenient approach for the preparation of functional block copolymers is the postmodification of classical block copolymer architectures. For example, polymer postmodification methods for introducing pendant functional or nonfunctional side groups into (carbo)silane‐ or siloxane‐based polymers have focused on hydrosilylation, hydroboration, and thiol–ene chemistry . Controlled and living polymerization strategies are promising routes for the preparation of functional grafted polymers .…”

Section: Introductionmentioning

confidence: 99%

“…For example, polymer postmodification methods for introducing pendant functional or nonfunctional side groups into (carbo)silane-or siloxane-based polymers have focused on hydrosilylation, hydroboration, and thiol-ene chemistry. [42][43][44][45][46] Controlled and living polymerization strategies are promising routes for the preparation of functional grafted polymers. [47][48][49] Especially anionic polymerization, which provides access to well-defined graft and block copolymers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polyvinylpyridine‐Grafted Block Copolymers by an Iterative All‐Anionic Polymerization Strategy

Appold

Rüttiger

Kuttich

et al. 2017

Macro Chemistry & Physics

View full text Add to dashboard Cite

Common stimuli include temperature, pH, light, redox reagents, and electrical fields. [16][17][18][19][20][21][22][23] Block copolymers featuring polyvinylpyridine (PVP) segments have attracted enormous attention due to their ability to undergo microphase separation, metal ion complexation, nanoparticle complexation, as well as participate in hydrogen bonding. [24] Stamm and co-workers have reported extensively on poly(styrene-block-(4-vinylpyridine)) (PS-b-P4VP) as a system. For example, they have reported on the influence of hydrogen bonding for poly(styrene-block-(4-vinylpyridine)) (PS-b-P4VP) for microphase separation, [25] the use of sacrificial PS-b-P4VP networks as carbon precursors, [26] the use of PS-b-P4VP as polymer templates for the preparation of highly ordered arrays of metallic nanodots, [27] and the preparation of P4VP-based block copolymers for helically arranged nanoparticle complexation in cylindrical domains. [28] Besides their structure formation capabilities, PVPs have been used as pH-responsive homopolymers, or as reversibly addressable segments in smart block copolymer architectures featuring protonated pyridinium moieties. [16] For example, Li et al. reported on the pH responsiveness of Au@PVP particles, and their application as pHresponsive bimetallic catalysts. [29] Furthermore, responsive P4VP-based cross-linked films have been used as pH sensors and as surfaces with controllable surface wettability. [30] The group of Eisenberg has also reported on the morphological changes in PS-b-P4VP micelles as a function of pH range. [31] Additionally, multi-stimuli-responsive block copolymers featuring a poly(2-vinylpyridine) (P2VP)-containing block segment were investigated in thin films, [32] as micelles in water, [33,34] and as smart nanocapsules. The latter have been advantageously used for the triggered release of different payloads from the capsules' interior. [21,35] As another impressive example, PSb-P4VP was the first polymer under investigation for creating integral asymmetric membranes with highly uniform pore sizes. [36] The complexation of the P4VP block segments with copper(II) ions was utilized for a stabilization of the PS-b-P4VP micelles in solution and hence a high reproducibility of uniform pore structures was achieved. [37,38] Besides copper(II) salts, other transition metals like nickel(II), cobalt(II), and iron(II) are also capable of influencing the self-organization of Anionic PolymerizationsFunctional block copolymers are a highly relevant material platform for many potential applications in fields of nanolithography, drug delivery, and separation technologies. Here, poly(2-vinylpyridine) (P2VP)-grafted diblock copolymers consisting of polystyrene-block-polyisoprene (PS-b-PI) backbone are synthesized via an iterative anionic grafting-to polymerization strategy. P2VP macro anions having molar masses of 1.1, 3.6, and 9.9 kDa are grafted to PS-b-PI block copolymers featuring 37 mol% 1,2-polyisoprene moieties. Prior to the grafting-to strategy, the PS-b-PI is subjected to pl...

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polyvinylpyridine‐Grafted Block Copolymers by an Iterative All‐Anionic Polymerization Strategy

Appold

Rüttiger

Kuttich

et al. 2017

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

“…Besides PFS-based block copolymers, also some other ferrocene-containing polymers based on methacrylate derivatives and vinylferrocene were capable of forming fascinating micro morphologies [ 283 , 284 , 285 ]. As an example of iron oxide as the final ceramic material, Tang and coworkers investigated the self-assembly and template synthesis of triblock copolymers with a poly(2-(methacryloyloxy)ethyl ferrocenecarboxylate) (PFcMA) block for the preparation of ordered iron oxides [ 135 ].…”

Section: Ceramic Nanocomposites With Tailor-made Phase Compositionmentioning

confidence: 99%

Ceramic Nanocomposites from Tailor-Made Preceramic Polymers

et al. 2015

View full text Add to dashboard Cite

The present Review addresses current developments related to polymer-derived ceramic nanocomposites (PDC-NCs). Different classes of preceramic polymers are briefly introduced and their conversion into ceramic materials with adjustable phase compositions and microstructures is presented. Emphasis is set on discussing the intimate relationship between the chemistry and structural architecture of the precursor and the structural features and properties of the resulting ceramic nanocomposites. Various structural and functional properties of silicon-containing ceramic nanocomposites as well as different preparative strategies to achieve nano-scaled PDC-NC-based ordered structures are highlighted, based on selected ceramic nanocomposite systems. Furthermore, prospective applications of the PDC-NCs such as high-temperature stable materials for thermal protection systems, membranes for hot gas separation purposes, materials for heterogeneous catalysis, nano-confinement materials for hydrogen storage applications as well as anode materials for secondary ion batteries are introduced and discussed in detail.

show abstract

“…One convenient strategy for the introduction of functional groups focuses on the postmodification of BCPs. For instance, polystyrene‐ block ‐polyisoprene (PS‐ b ‐PI), polystyrene‐ block ‐polybutadiene (PS‐ b ‐PBd), and polysiloxane‐based BCPs can be used for this purpose and pendant functional moieties can be introduced by hydrosilylation, hydroboration, or thiol‐ene chemistry . As a result, subsequent grafting to protocols for the BCPs lead to grafted, comb, or dendritic BCPs .…”

Section: Introductionmentioning

confidence: 99%

“…For instance, polystyrene-block-polyisoprene (PS-b-PI), polystyrene-block-polybutadiene (PS-b-PBd), and polysiloxanebased BCPs can be used for this purpose and pendant functional moieties can be introduced by hydrosilylation, hydroboration, or thiol-ene chemistry. [39][40][41][42][43][44][45][46][47][48][49][50][51][52] As a result, subsequent grafting to protocols for the BCPs lead to grafted, comb, or dendritic BCPs. [53][54][55][56][57] As one prominent example, grafting methodologies can be applied for poly butadiene (PBd) with, for instance, PS or PBd macro anions by anionic polymerization after functionalization of the PBd backbone with chlorosilane moieties, which were introduced by hydrosilylation.…”

Section: Introductionmentioning

confidence: 99%

Anionic Grafting to Strategies for Functional Polymethacrylates: Convenient Preparation of Stimuli‐Responsive Block Copolymer Architectures

Appold

Bareuther

Gallei

2019

Macro Chemistry & Physics

View full text Add to dashboard Cite

Functional block copolymers (BCP) are promising candidates for many important applications in fields of separations technologies, drug delivery, or (nano)lithography. Here, a universal strategy is described for the preparation of functional poly(methacrylate)s grafted (PMA) to polystyrene‐block‐polyisoprene (PS‐b‐PI) BCPs via a convenient postmodification strategy. PS‐b‐PIs are functionalized by means of hydrosilylation protocols for the introduction of chlorosilane moieties. Subsequent anionic grafting‐to polymerization of different functional PMA macro anions leads to grafted BCP. Various functional and non‐functional homopolymers, that is, poly(di(ethylene glycol) methyl ether methacrylate), poly(methacrylic acid), and poly(3‐methacryloxypropyl)heptaisobutyl‐T8‐silsesquioxane as well as poly(methyl methacrylate), poly(n‐butyl methacrylate), poly(iso‐propyl methacrylate), poly(tert‐butyl methacrylate), and poly(2‐hydroxy ethyl methacrylate) are block‐selectively incorporated into the PI segment. Applied grafting strategies for the non‐functional PMA derivatives, which feature different sizes of the alkyl substituent, reveal a strong influence on the grafting‐to efficiency. The grafted BCP architectures are capable of undergoing microphase separation in the bulk state, while the resulting morphology is significantly influenced by the introduction of PMA segments as shown by transmission electron microscopy measurements. Additionally, the structure formation and pH‐switching capability of the poly(methacrylic acid)‐grafted BCP is studied by dynamic light scattering, proving the feasibility for the herein investigated synthesis strategy.

show abstract

A convenient synthesis strategy for microphase-separating functional copolymers: the cyclohydrocarbosilane tool box

Cited by 11 publications

References 78 publications

Polyvinylpyridine‐Grafted Block Copolymers by an Iterative All‐Anionic Polymerization Strategy

Polyvinylpyridine‐Grafted Block Copolymers by an Iterative All‐Anionic Polymerization Strategy

Ceramic Nanocomposites from Tailor-Made Preceramic Polymers

Anionic Grafting to Strategies for Functional Polymethacrylates: Convenient Preparation of Stimuli‐Responsive Block Copolymer Architectures

Contact Info

Product

Resources

About