Recent developments in nanostructured polyhedral oligomeric silsesquioxane-based materials via ‘controlled’ radical polymerization

2014 ◽  
Vol 63 (5) ◽  
pp. 835-847 ◽  
Author(s):  
Hazrat Hussain ◽  
Syed M Shah
Keyword(s):  
Radical Polymerization ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Controlled Radical Polymerization ◽  
Recent Developments ◽  
Oligomeric Silsesquioxane

scholarly journals Progress in the Synthesis of Bifunctionalized Polyhedral Oligomeric Silsesquioxane

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2098 ◽  
Author(s):  
Mingyue Wang ◽  
Hong Chi ◽  
Joshy K.S. ◽  
Fuke Wang
Keyword(s):  
Optical Properties ◽  
Composite Materials ◽  
Aromatic Ring ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Industrial Research ◽  
Hybrid Nature ◽  
Backbone Chain ◽  
Polymer Hybrids ◽  
Recent Developments ◽  
Oligomeric Silsesquioxane

Polyhedral oligomeric silsesquioxane (POSS) has been considered as one of the most promising nanofillers in academic and industrial research due to its unique multifunctional nanostructure, easy functionalization, hybrid nature, and high processability. The progress of POSS has been extensive, particularly applications based on single- or multiple-armed POSS. In polymer hybrids, in order to enhance the properties, bifunctional POSS has been incorporated into the backbone chain of the polymer. This review summarizes recent developments in the synthesis, modification, and application of bifunctional POSS-containing composite materials. This includes amino-POSS, hydroxyl-POSS, aromatic ring-POSS, ether-POSS, and vinyl groups-POSS and their applications, exemplified by polyurethanes (PUs) and polyimides (PIs). In addition, the review highlights the enhancement of thermal, mechanical, and optical properties of the composites.

scholarly journals Recent Advances in Macromolecularly Imprinted Polymers by Controlled Radical Polymerization Techniques

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Huiqi Zhang
Keyword(s):  
Radical Polymerization ◽  
Low Cost ◽  
Proteome Analysis ◽  
Controlled Radical Polymerization ◽  
Clinical Diagnostics ◽  
Imprinted Polymers ◽  
Recognition Ability ◽  
Recent Developments ◽  
Target Molecules ◽  
Controlled Preparation

AbstractMolecularly imprinted polymers (MIPs) are synthetic receptors with tailor-made recognition sites for the target molecules. Their high molecular recognition ability, good stability, easy preparation, and low cost make them highly promising substitutes for biological receptors. Recent years have witnessed rapidly increasing interest in the imprinting of biomacromolecules and especially proteins because of the great potential of these MIPs in such applications as proteome analysis, clinical diagnostics, and biomedicine. So far, some useful strategies have been developed for the imprinting of proteins and controlled radical polymerization techniques have proven highly versatile for such purpose. This mini-review describes recent developments in the controlled preparation of proteins-imprinted polymers via such advanced polymerization techniques.

scholarly journals Recent Developments and Future Challenges in Controlled Radical Polymerization: A 2020 Update

Chem ◽  
2020 ◽  
Vol 6 (7) ◽  
pp. 1575-1588 ◽  
Author(s):  
Kostas Parkatzidis ◽  
Hyun Suk Wang ◽  
Nghia P. Truong ◽  
Athina Anastasaki
Keyword(s):  
Radical Polymerization ◽  
Controlled Radical Polymerization ◽  
Future Challenges ◽  
Recent Developments

scholarly journals Main Chain–Type Block Copolymers through Atom Transfer Radical Polymerization from Double-Decker–Shaped Polyhedral Oligomeric Silsesquioxane Hybrids

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 465 ◽  
Author(s):  
Wei-Cheng Chen ◽  
Yu-Hsuan Tsao ◽  
Chih-Feng Wang ◽  
Chih-Feng Huang ◽  
Lizong Dai ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Diblock Copolymer ◽  
Main Chain ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Double Decker ◽  
Copolymer Poly ◽  
Oligomeric Silsesquioxane ◽  
Chain Type

In this study, we synthesized two main chain–type block copolymers featuring hydrogen bond donor and acceptor segments through atom transfer radical polymerization (ATRP) using a bifunctionalized polyhedral oligomeric silsesquioxane (POSS) nanoparticle as the initiator. Hydrosilylation of vinylbenzyl chloride at the two corners of a double-decker silsesquioxane (DDSQ) provided the bifunctionalized benzyl chloride initiator VBC-DDSQ-VBC, which we applied as a platform to prepare a main chain–type polystyrene homopolymer (PS-DDSQ-PS), the diblock copolymer poly(styrene–b–4-vinylpyridine) (P4VP-b-PS-DDSQ-PS-b-P4VP), and the diblock copolymer poly(styrene–b–tert-butoxystyrene) (PtBuOS-b-PS-DDSQ-PS-b-PtBuOS) through sequential ATRP. Selective hydrolysis of the tert-butoxyl units of PtBuOS-b-PS-DDSQ-PS-b-PtBuOS yielded the strongly hydrogen bonding diblock copolymer poly (styrene-b-vinylphenol) (PVPh-b-PS-DDSQ-PS-b-PVPh). We used Fourier transfer infrared spectroscopy, nuclear magnetic resonance spectroscopy, size exclusion chromatography, differential scanning calorimetry, mass-analyzed laser desorption ionization mass spectrometry, and transmission electron microscopy to investigate the chemical structures, thermal behavior, and self-assembled nanostructures formed by these main chain–type block copolymers based on DDSQ.

Introducing the Azlactone Functionality into Polymers through Controlled Radical Polymerization: Strategies and Recent Developments

2012 ◽  
Vol 65 (8) ◽  
pp. 970 ◽  
Author(s):  
H. T. Ho ◽  
M. E. Levere ◽  
D. Fournier ◽  
V. Montembault ◽  
S. Pascual ◽  
...  
Keyword(s):  
Click Chemistry ◽  
Radical Polymerization ◽  
Michael Addition ◽  
Controlled Radical Polymerization ◽  
Reactive Polymers ◽  
Recent Developments ◽  
Radical Polymerizations ◽  
Made In

Polymers containing the highly reactive azlactone group have emerged as a powerful platform useful in various application areas. This Highlight summarizes recent developments in the field of azlactone-derived polymers made in our group using controlled radical polymerizations (ATRP and RAFT) and ‘click’ chemistry methodology (thiol-Michael addition), leading to well defined reactive polymers.

The Thermal Properties of Polystyrene/Magnetic Polyhedral Oligomeric Silsesquioxane (POSS ) Nanocomposites Prepared under Magnetic Field

2011 ◽  
Vol 335-336 ◽  
pp. 203-206
Author(s):  
Xiao Yan Song ◽  
Bo Wen Cheng ◽  
Jin Feng Xing
Keyword(s):  
Magnetic Field ◽  
Thermal Properties ◽  
Free Radical ◽  
Radical Polymerization ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Free Radical Polymerization ◽  
Xrd Studies ◽  
Magnetic Filed ◽  
Oligomeric Silsesquioxane ◽  
Better Than

Polystyrene composites containing polyhedral oligomeric silsesquioxane (POSS1) were prepared by bulk free radical polymerization under magnetic field and no magnetic field. XRD studies indicate dispersion of POSS1 in PS/POSS1 97/3 nanocomposites prepared under magnetic field is better than those prepared without magnetic field. The PS/POSS1 nanocomposites also display much higher initial decomposed temperature in comparison with neat PS. The initial decomposed temperature of PS/POSS1 nanocomposites prepared under magnetic filed are higher than those with same content of POSS1 without magnetic field.

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