scholarly journals Direct laser writing of poly(phenylene vinylene) on poly(barrelene)

2020 ◽  
Vol 11 (34) ◽  
pp. 5437-5443 ◽  
Author(s):  
Tang Tang ◽  
Guillermo Ahumada ◽  
Christopher W. Bielawski
Keyword(s):  
Ring Opening ◽  
Phenylene Vinylene ◽  
Direct Laser Writing ◽  
Ring Opening Metathesis Polymerization ◽  
Laser Writing ◽  
Metathesis Polymerization ◽  
Direct Laser

The ring-opening metathesis polymerization of barrelene (bicyclo[2.2.2]octa-2,5,7-triene) is described and well-defined fluorescent patterns with micrometer dimensions were created by direct laser writing on films of poly(barrelene-co-norbornene).

Stereoretentive Ring-Opening Metathesis Polymerization to Access All-cis Poly(p-phenylene vinylene)s with Living Characteristics

2020 ◽  
Author(s):  
Ting-Wei Hsu ◽  
Cheoljae Kim ◽  
Quentin Michaudel
Keyword(s):  
Organic Material ◽  
Ring Opening ◽  
Diblock Copolymers ◽  
Conductive Polymer ◽  
Synthetic Methods ◽  
Phenylene Vinylene ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Molecular Weights ◽  
Responsive Polymers

Poly(p-phenylene vinylene)s (PPVs), a staple of the conductive polymer family, consist of alternating alkene and phenyl groups in conjugation. The physical properties of this organic material are intimately linked to the cis/trans configuration of the alkene groups. While many synthetic methods afford PPVs with alltrans stereochemistry, very few deliver the all-cis congeners. We report herein the first synthesis of all-cis PPVs with living characteristics via stereoretentive ring-opening metathesis polymerization (ROMP). Exquisite catalyst control allows for the preparation of homopolymers or diblock copolymers with perfect stereoselectivity, narrow dispersities, and predictable molecular weights. All-cis PPVs can then serve as light-responsive polymers through clean photoisomerization of the stilbenoid units.

Stereoretentive Ring-Opening Metathesis Polymerization to Access All-cis Poly(p-phenylene vinylene)s with Living Characteristics

2020 ◽  
Author(s):  
Ting-Wei Hsu ◽  
Cheoljae Kim ◽  
Quentin Michaudel
Keyword(s):  
Organic Material ◽  
Ring Opening ◽  
Diblock Copolymers ◽  
Conductive Polymer ◽  
Synthetic Methods ◽  
Phenylene Vinylene ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Molecular Weights ◽  
Responsive Polymers

Poly(p-phenylene vinylene)s (PPVs), a staple of the conductive polymer family, consist of alternating alkene and phenyl groups in conjugation. The physical properties of this organic material are intimately linked to the cis/trans configuration of the alkene groups. While many synthetic methods afford PPVs with alltrans stereochemistry, very few deliver the all-cis congeners. We report herein the first synthesis of all-cis PPVs with living characteristics via stereoretentive ring-opening metathesis polymerization (ROMP). Exquisite catalyst control allows for the preparation of homopolymers or diblock copolymers with perfect stereoselectivity, narrow dispersities, and predictable molecular weights. All-cis PPVs can then serve as light-responsive polymers through clean photoisomerization of the stilbenoid units.

Synthesis and Purification of Tunable High Tg Electro-Optical Polymers by Ring Opening Metathesis Polymerization

2011 ◽  
Author(s):  
Robert H. Lambeth ◽  
Joseph M. Dougherty ◽  
Joshua A. Orlicki ◽  
Adam M. Rawlett ◽  
Robert C. Hoffman ◽  
...  
Keyword(s):  
Ring Opening ◽  
Optical Polymers ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization
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