Biorenewable Multiphase Polymers

MRS Bulletin ◽  
2010 ◽  
Vol 35 (3) ◽  
pp. 194-200 ◽  
Author(s):  
Megan L. Robertson ◽  
Marc A. Hillmyer ◽  
Anne-Cécile Mortamet ◽  
Anthony J. Ryan
Keyword(s):  
Self Assembly ◽  
Rapid Rate ◽  
Important Research ◽  
Structure Property ◽  
Aliphatic Polyesters ◽  
Structure Property Relationships ◽  
Segmented Polyurethanes ◽  
Sustainable Materials ◽  
Research Endeavor ◽  
Bitumen Modification

AbstractHybrid macromolecules composed of two or more covalently connected segments have the ability to self-assemble into nanostructured materials. These fascinating materials are used in applications ranging from footwear to bitumen modification to microelectronics. The number of technologies that utilize or could benefit from multiphase polymers is expanding at a rapid rate. This growth is due to the development of simple scalable synthetic technologies, a deeper understanding of their structure-property relationships, and their effectiveness as low-level additives. As industrial uses of self-assembled polymers become more prevalent, there will be a heightened focus on alternative preparative approaches that do not rely on petroleum feedstocks. Therefore the development of biorenewable multiphase polymers is an important research endeavor. In this article, we will explore the synthesis, self-assembly, and properties of renewable block and graft copolymers that contain aliphatic polyesters, as well as bio-sourced segmented polyurethanes. These two classes of multiphase polymers are the most promising and practical candidates for implementation in the next generation of sustainable materials.

scholarly journals Fully Fused Boron-Doped Polycyclic Aromatic Hydrocarbons: Their Synthesis, Structure–Property Relationships, and Self-Assembly Behavior in Aqueous Media

2022 ◽  
Author(s):  
Hiroki Narita ◽  
Heekyoung Choi ◽  
Masato Ito ◽  
Naoki Ando ◽  
Soichiro Ogi ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Self Assembly ◽  
Aqueous Media ◽  
Structure Property ◽  
Organic Optoelectronics ◽  
Structure Property Relationships ◽  
Boron Doped ◽  
Polycyclic Aromatic ◽  
Assembly Behavior

Planarized triarylboranes are attracting increasing attention not only as models of boron-doped graphenes, but also as promising materials for organic optoelectronics. In particular, polycyclic aromatic hydrocarbon (PAH) skeletons with embedded...

scholarly journals Polyelectrolyte Complexation of Oligonucleotides by Charged Hydrophobic—Neutral Hydrophilic Block Copolymers

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 83 ◽  
Author(s):  
Alexander E. Marras ◽  
Jeffrey R. Vieregg ◽  
Jeffrey M. Ting ◽  
Jack D. Rubien ◽  
Matthew V. Tirrell
Keyword(s):  
Charge Density ◽  
Self Assembly ◽  
Block Size ◽  
Structure Property ◽  
Shell Nanoparticles ◽  
Polyelectrolyte Complexes ◽  
Structure Property Relationships ◽  
Polyelectrolyte Complexation ◽  
The Rich ◽  
Core Shell Nanoparticles

Polyelectrolyte complex micelles (PCMs, core-shell nanoparticles formed by complexation of a polyelectrolyte with a polyelectrolyte-hydrophilic neutral block copolymer) offer a solution to the critical problem of delivering therapeutic nucleic acids, Despite this, few systematic studies have been conducted on how parameters such as polycation charge density, hydrophobicity, and choice of charged group influence PCM properties, despite evidence that these strongly influence the complexation behavior of polyelectrolyte homopolymers. In this article, we report a comparison of oligonucleotide PCMs and polyelectrolyte complexes formed by poly(lysine) and poly((vinylbenzyl) trimethylammonium) (PVBTMA), a styrenic polycation with comparatively higher charge density, increased hydrophobicity, and a permanent positive charge. All of these differences have been individually suggested to provide increased complex stability, but we find that PVBTMA in fact complexes oligonucleotides more weakly than does poly(lysine), as measured by stability versus added salt. Using small angle X-ray scattering and electron microscopy, we find that PCMs formed from both cationic blocks exhibit very similar structure-property relationships, with PCM radius determined by the cationic block size and shape controlled by the hybridization state of the oligonucleotides. These observations narrow the design space for optimizing therapeutic PCMs and provide new insights into the rich polymer physics of polyelectrolyte self-assembly.

scholarly journals Thermoresponsive poly(2-oxazoline)s, polypeptoids, and polypeptides

2017 ◽  
Vol 8 (1) ◽  
pp. 24-40 ◽  
Author(s):  
Richard Hoogenboom ◽  
Helmut Schlaad
Keyword(s):  
Self Assembly ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Recent Advances ◽  
Specific Focus

Recent advances in thermoresponsive poly(2-oxazoline)s, polypeptoids, and polypeptides, with a specific focus on structure–property relationships, self-assembly, and applications, are reviewed.

Structure–property relationships in segmented polyurethanes with metal chelates in the main chain

2000 ◽  
Vol 36 (6) ◽  
pp. 1113-1126 ◽  
Author(s):  
G. Georgoussis ◽  
A. Kanapitsas ◽  
P. Pissis ◽  
Yu.V. Savelyev ◽  
V.Ya. Veselov ◽  
...  
Keyword(s):  
Main Chain ◽  
Metal Chelates ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Segmented Polyurethanes

Structure–Property Relationships in CO2-philic (Co)polymers: Phase Behavior, Self-Assembly, and Stabilization of Water/CO2Emulsions

2016 ◽  
Vol 116 (7) ◽  
pp. 4125-4169 ◽  
Author(s):  
Etienne Girard ◽  
Thierry Tassaing ◽  
Jean-Daniel Marty ◽  
Mathias Destarac
Keyword(s):  
Phase Behavior ◽  
Self Assembly ◽  
Structure Property ◽  
Structure Property Relationships

Oligoaniline crystals: morphology control, hierarchical assembly and structure-property relationships

2012 ◽  
Vol 1402 ◽  
Author(s):  
Yue Wang ◽  
Henry D. Tran ◽  
Jinglin Liu ◽  
David C. Martin ◽  
Richard B. Kaner
Keyword(s):  
Self Assembly ◽  
Carrier Transport ◽  
Hollow Spheres ◽  
Structure Property ◽  
Exchange Method ◽  
Hierarchical Assembly ◽  
Structure Property Relationships ◽  
Selected Area Electron Diffraction ◽  
Hole Transporting ◽  
Different Shapes

ABSTRACTShort-chain oligomers of aniline are attractive semi-metallic materials for applications as organic electrodes or hole-transporting layers in organic photovoltaics. However, conventionally processed oligoanilines are often amorphous, which limits their conductivities and carrier transport mobilities. Here, we report a simple solvent-exchange method that can render a variety of oligoanilines and their derivatives into crystals of different shapes and dimensions, including 1-D fibers and wires, 2-D ribbons, and 3-D plates, hollow spheres, porous sheets, and flower-like structures. Dopant ions are also simultaneously incorporated into the crystals during self-assembly, allowing them to become conducting. Mechanistic studies suggest that the higher order crystals arise from the most primitive nanofibrillar morphology via hierarchical assembly, providing insights into a general approach to control organic crystal morphologies. Selected area electron diffraction studies reveal their single crystalline nature.

scholarly journals Dynamics in supramolecular nanomaterials

Soft Matter ◽  
2021 ◽  
Author(s):  
Yukio Cho ◽  
Ty Christoff-Tempesta ◽  
Samuel Joshua Kaser ◽  
Julia Ortony
Keyword(s):  
Small Molecules ◽  
Self Assembly ◽  
The Self ◽  
Structure Property ◽  
Structure Property Relationships

The self-assembly of amphiphilic small molecules in water leads to nanostructures with customizable structure-property relationships arising from their tunable chemistries. Characterization of these assemblies is generally limited to their static...

Polyelectrolyte Complexation of Oligonucleotides by Charged Hydrophobic – Neutral Hydrophilic Block Polymers

2018 ◽  
Author(s):  
Alexander E. Marras ◽  
Jeffrey Vieregg ◽  
Jeffrey Ting ◽  
Jack D. Rubien ◽  
Matthew Tirrell
Keyword(s):  
Self Assembly ◽  
Block Size ◽  
Structure Property ◽  
Shell Nanoparticles ◽  
Block Polymer ◽  
Structure Property Relationships ◽  
X Ray Scattering ◽  
Polyelectrolyte Complexation ◽  
The Rich ◽  
Core Shell Nanoparticles

Polyelectrolyte complex micelles (PCMs, core-shell nanoparticles formed by complexation of a polyelectrolyte with a polyelectrolyte-hydrophilic neutral block polymer) offer an attractive solution to the critical problem of delivering therapeutic nucleic acids, but few structure-property studies have been carried out to date. We present data comparing oligonucleotide PCMs formed with poly(vinylbenzyl trimethylammonium) as the cationic block to those using poly(lysine), which is more commonly used. Despite its higher charge density, increased hydrophobicity, and permanent charge, pVBTMA appears to complex DNA more weakly than does poly(lysine). Using small angle X-ray scattering and electron microscopy, we find that, at physiological ionic strength, PCMs formed from both cationic blocks exhibit very similar structure-property relationships, with PCM radius determined by the cationic block size and shape controlled by the hybridization state of the oligonucleotides. These observations narrow the design space for optimizing therapeutic PCMs and provide new insights into the rich polymer physics of polyelectrolyte self-assembly. <br>

Polyelectrolyte Complexation of Oligonucleotides by Charged Hydrophobic – Neutral Hydrophilic Block Polymers

2018 ◽  
Author(s):  
Alexander E. Marras ◽  
Jeffrey Vieregg ◽  
Jeffrey Ting ◽  
Jack D. Rubien ◽  
Matthew Tirrell
Keyword(s):  
Self Assembly ◽  
Block Size ◽  
Structure Property ◽  
Shell Nanoparticles ◽  
Block Polymer ◽  
Structure Property Relationships ◽  
X Ray Scattering ◽  
Polyelectrolyte Complexation ◽  
The Rich ◽  
Core Shell Nanoparticles

Polyelectrolyte complex micelles (PCMs, core-shell nanoparticles formed by complexation of a polyelectrolyte with a polyelectrolyte-hydrophilic neutral block polymer) offer an attractive solution to the critical problem of delivering therapeutic nucleic acids, but few structure-property studies have been carried out to date. We present data comparing oligonucleotide PCMs formed with poly(vinylbenzyl trimethylammonium) as the cationic block to those using poly(lysine), which is more commonly used. Despite its higher charge density, increased hydrophobicity, and permanent charge, pVBTMA appears to complex DNA more weakly than does poly(lysine). Using small angle X-ray scattering and electron microscopy, we find that, at physiological ionic strength, PCMs formed from both cationic blocks exhibit very similar structure-property relationships, with PCM radius determined by the cationic block size and shape controlled by the hybridization state of the oligonucleotides. These observations narrow the design space for optimizing therapeutic PCMs and provide new insights into the rich polymer physics of polyelectrolyte self-assembly. <br>

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