scholarly journals Regio- and sequence-controlled conjugated topological oligomers and polymers via boronate-tag assisted solution-phase strategy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chaoran Xu ◽  
Congze He ◽  
Ning Li ◽  
Shicheng Yang ◽  
Yuxuan Du ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Polymeric Materials ◽  
Solution Phase ◽  
Polymer Science ◽  
Condensation Polymerization ◽  
Structure Property ◽  
Precise Control ◽  
Synthetic Strategy ◽  
Monomer Sequence ◽  
Relationship Of

AbstractThe regulation of polymer topology and the precise control over the monomer sequence is crucial and challenging in polymer science. Herein, we report an efficient solution-phase synthetic strategy to prepare regio- and sequence-controlled conjugated polymers with topological variations via the usage of methyliminodiacetic acid (MIDA) boronates. Based on the solubility of MIDA boronates and their unusual binary affinity for silica gel, the synthesized regio- and sequence-defined conjugated oligomers can be rapidly purified via precipitation or automatic liquid chromatography. These synthesized discrete oligomers can be used for iterative exponential and sequential growth to obtain linear and dendrimer-like star polymers. Moreover, different topological sequence-controlled conjugated polymers are conveniently prepared from these discrete oligomers via condensation polymerization. By investigating the structure-property relationship of these polymers, we find that the optical properties are strongly influenced by the regiochemistry, which may give inspiration to the design of optoelectronic polymeric materials.

scholarly journals Polymer-encapsulated organic nanoparticles for fluorescence and photoacoustic imaging

2014 ◽  
Vol 43 (18) ◽  
pp. 6570-6597 ◽  
Author(s):  
Kai Li ◽  
Bin Liu
Keyword(s):  
Conjugated Polymers ◽  
Critical Review ◽  
Photoacoustic Imaging ◽  
Structure Property ◽  
Organic Nanoparticles ◽  
Aggregation Induced Emission ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of ◽  
Encapsulated Nanoparticles

In this Critical Review, we summarize the latest advances in the development of polymer encapsulated nanoparticles based on conjugated polymers and fluorogens with aggregation induced emission (AIE) characteristics, elucidate the importance of matrix selection and structure–property relationship of these nanoparticles and discuss their applications in fluorescence and photoacoustic imaging.

Shape-memory and self-healing polyurethanes based on cyclic poly(ε-caprolactone)

2016 ◽  
Vol 7 (44) ◽  
pp. 6789-6797 ◽  
Author(s):  
Wei Chen ◽  
Yanyan Zhou ◽  
Ying Li ◽  
Jun Sun ◽  
Xiangqiang Pan ◽  
...  
Keyword(s):  
Shape Memory ◽  
Memory Performance ◽  
Polymeric Materials ◽  
Self Healing ◽  
Structure Property ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of

This work provides an unprecedented example for the exploration of the cyclic topology effects on the shape memory performance of bulk polyurethane materials, providing a novel angle to elucidate the structure–property relationship of polymeric materials.

Structure–property relationship of D–A type copolymers based on phenanthrene and naphthalene units for organic electronics

2017 ◽  
Vol 5 (39) ◽  
pp. 10332-10342 ◽  
Author(s):  
Yeong-A Kim ◽  
Minji Kang ◽  
Ye-Jin Jeon ◽  
Kyeongil Hwang ◽  
Yeon-Ju Kim ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Organic Electronics ◽  
Organic Photovoltaics ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Structure Property ◽  
Structure Property Relationship ◽  
Donor Acceptor ◽  
Relationship Of

Four donor–acceptor (D–A) type conjugated polymers were synthesized for organic photovoltaics and organic field effect transistors.

scholarly journals Solvent-Free Digital Light 3D Printing using Biodegradable Polymeric Photoinitiators

2020 ◽  
Author(s):  
matthias sandmeier ◽  
nevena paunovic ◽  
Riccardo Conti ◽  
Hofmann Leopold ◽  
Jieping Wang ◽  
...  
Keyword(s):  
3D Printing ◽  
Polymeric Materials ◽  
Systematic Investigation ◽  
Tissue Scaffolds ◽  
Solvent Free ◽  
Medical Implants ◽  
Structure Property ◽  
Digital Light Processing ◽  
Structure Property Relationship ◽  
Relationship Of

<p>Vat photopolymerization 3D printing provides new</p><p>opportunities for the fabrication of tissue scaffolds and medical</p><p>devices. However, it usually requires the use of organic solvents or</p><p>diluents to dissolve the solid photoinitators, making this process</p><p>environmentally unfriendly, and not optimal for biomedical</p><p>applications. Here, we report biodegradable liquid polymeric</p><p>photoinitiators for solvent-free 3D printing of biodegradable polymeric</p><p>materials by digital light processing. These photoinitiators enable</p><p>systematic investigation of structure-property relationship of 3D</p><p>printing polymeric materials without the interference from the reactive</p><p>diluents and offer new perspectives for the solvent-free 3D additive</p><p>manufacturing of bioresorbable medical implants as well as other</p><p>functional devices.</p>

scholarly journals Solvent-Free Digital Light 3D Printing using Biodegradable Polymeric Photoinitiators

2020 ◽  
Author(s):  
matthias sandmeier ◽  
nevena paunovic ◽  
Riccardo Conti ◽  
Hofmann Leopold ◽  
Jieping Wang ◽  
...  
Keyword(s):  
3D Printing ◽  
Polymeric Materials ◽  
Systematic Investigation ◽  
Tissue Scaffolds ◽  
Solvent Free ◽  
Medical Implants ◽  
Structure Property ◽  
Digital Light Processing ◽  
Structure Property Relationship ◽  
Relationship Of

<p>Vat photopolymerization 3D printing provides new</p><p>opportunities for the fabrication of tissue scaffolds and medical</p><p>devices. However, it usually requires the use of organic solvents or</p><p>diluents to dissolve the solid photoinitators, making this process</p><p>environmentally unfriendly, and not optimal for biomedical</p><p>applications. Here, we report biodegradable liquid polymeric</p><p>photoinitiators for solvent-free 3D printing of biodegradable polymeric</p><p>materials by digital light processing. These photoinitiators enable</p><p>systematic investigation of structure-property relationship of 3D</p><p>printing polymeric materials without the interference from the reactive</p><p>diluents and offer new perspectives for the solvent-free 3D additive</p><p>manufacturing of bioresorbable medical implants as well as other</p><p>functional devices.</p>

Structure–property relationship of acceptor-substituted oligothiophenes

Tetrahedron ◽  
2010 ◽  
Vol 66 (45) ◽  
pp. 8729-8733 ◽  
Author(s):  
M.S. Wrackmeyer ◽  
M. Hummert ◽  
H. Hartmann ◽  
M.K. Riede ◽  
K. Leo
Keyword(s):  
Structure Property ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Relationship Of

Structure–property–function relationship of fluorescent conjugated microporous polymers

2021 ◽  
Author(s):  
M. G. Monika Bai ◽  
H. Vignesh Babu ◽  
V. Lakshmi ◽  
M. Rajeswara Rao
Keyword(s):  
Long Range ◽  
Structure Property ◽  
Porous Organic Polymers ◽  
Aggregation Induced Emission ◽  
Microporous Polymers ◽  
Exciton Migration ◽  
Wide Range ◽  
Function Relationship ◽  
Relationship Of ◽  
Conjugated Microporous Polymers

Fluorescent porous organic polymers are a unique class of materials owing to their strong aggregation induced emission, long range exciton migration and permanent porosity, thus envisioned to possess a wide range of applications (sensing, OLEDs).

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