Synthesis of copolymers with a controllable sequence length of <i>p</i>‐phenylenevinylene units

Thorn‐Csányi, Emma; Pflug, Kai Patrick

doi:10.1002/marc.1993.030140914

Cited by 26 publications

(2 citation statements)

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“…The block -copolymers show a λ max (excitation) of 400 nm, similar to PPV. Copolymers of [2.2]paracyclophane-1,9-diene (PCPDE) with COD prepared by the Grubbs catalyst W(CHAr‘)(NAr)[OCMe(CF 3 ) 2 ] 2 ·THF (Ar‘ = o- CH 3 −O−C 6 H 4 ; Ar = 2,6-Me 2 C 6 H 3 ) were found to consist of separated −C 6 H 4 −CHCH units homogeneously distributed along the polymer chain. , Oligomers of divinylbenzene prepared via ADMET polymerization have been reported to be useful for the preparation of copolymers containing controllable sequence lengths of PPC units . Ring-opening metathesis copolymerization has been used successfully for the enhancement of the solubility of PPV-containing copolymers .…”

Section: E Electroluminescent Photoluminescent and Other Luminescent ...mentioning

confidence: 99%

Homogeneous Metathesis Polymerization by Well-Defined Group VI and Group VIII Transition-Metal Alkylidenes: Fundamentals and Applications in the Preparation of Advanced Materials

2000

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Section: E Electroluminescent Photoluminescent and Other Luminescent ...mentioning

confidence: 99%

Homogeneous Metathesis Polymerization by Well-Defined Group VI and Group VIII Transition-Metal Alkylidenes: Fundamentals and Applications in the Preparation of Advanced Materials

2000

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“…Branches included on an ADMET backbone are not limited to aliphatic hydrocarbons. Many other moieties have been incorporated into ADMET polymers including aromatic groups, [29][30][31][32][33] acids, [ 34,35 ] silanes, [ 36 ] ethers, [ 37 ] metals, [38][39][40][41] acetals, [ 40 ] ketones, [ 42,43 ] and thioethers, [ 44 ] to give a few examples.…”

Section: Branch Identitymentioning

confidence: 99%

Precision Polymers through ADMET Polymerization

Schülz

Wagener

2014

Macro Chemistry & Physics

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Acyclic diene metathesis (ADMET) polymerization is a unique strategy for achieving polymers with precise control over the primary structure. This precision is obtained by specifi c monomer design and carefully controlled polymerization conditions. Over time, this approach has produced an array of sophisticated architectures ranging from precise polyethylenes, to hyperbranched polymers, to rotaxanes.ADMET polymerization (Figure 1 ) comprises an α,ω-diene monomer and a suitable olefi n metathesis catalyst. Typically the metathesis precatalyst is activated by the initial reaction with the diene monomer, yielding a metal alkylidene species, which subsequently reacts with another diene, releasing the newly formed dimer and the metal methylidene species. The metal methylidene is generally regarded as the true catalytic species in the reaction. Subsequent reactions with monomer or polymer produce ethylene, which is typically removed under high vacuum conditions. The removal of ethylene drives the reaction toward polymer formation due to the equilibrium nature of the polymerization. [ 2 ] The history of ADMET's discovery has been detailed elsewhere, [ 3,4 ] but it is important to point out that the development of ADMET polymerization is the direct result of breakthroughs in olefi n metathesis catalysis by Schrock [5][6][7][8][9][10] and Grubbs. [11][12][13][14][15][16][17] Without the creation of effective olefi n metathesis catalysts (Figure 2 ), effi cient ADMET polymerization would not be possible. Here we review the development of "precision polyolefi ns," and the most recent advances in ADMET chemistry. Precision Polyolefi nsConventional ADMET polymerization results in an allhydrocarbon backbone. Consequently, it is a useful method of synthesizing polymers that model commercially

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The Discovery and Development of High Oxidation State Mo and W Imido Alkylidene Complexes for Alkene Metathesis

Schrock¹

2003

Handbook of Metathesis

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Synthesis of copolymers with a controllable sequence length of p‐phenylenevinylene units

Cited by 26 publications

References 16 publications

Homogeneous Metathesis Polymerization by Well-Defined Group VI and Group VIII Transition-Metal Alkylidenes: Fundamentals and Applications in the Preparation of Advanced Materials

Homogeneous Metathesis Polymerization by Well-Defined Group VI and Group VIII Transition-Metal Alkylidenes: Fundamentals and Applications in the Preparation of Advanced Materials

Precision Polymers through ADMET Polymerization

The Discovery and Development of High Oxidation State Mo and W Imido Alkylidene Complexes for Alkene Metathesis

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