In Situ Monitoring of the Reaction-Induced Self-Assembly of Phenolic Resin Templated by Diblock Copolymers

2013 ◽  
Vol 214 (18) ◽  
pp. 2115-2123 ◽  
Author(s):  
Jheng-Guang Li ◽  
Wei-Cheng Chu ◽  
U.-Ser Jeng ◽  
Shiao-Wei Kuo
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Phenolic Resin ◽  
In Situ Monitoring

In situ monitoring of PISA morphologies

2021 ◽  
Author(s):  
Julia Y. Rho ◽  
Georg M. Scheutz ◽  
Satu Häkkinen ◽  
John B. Garrison ◽  
Qiao Song ◽  
...  
Keyword(s):  
Convenient Method ◽  
Self Assembly ◽  
In Situ Monitoring ◽  
Fluorescent Spectroscopy

Fluorescent spectroscopy is a convenient method for monitoring the progression of polymerization-induced self-assembly (PISA).

In Situ Monitoring of Structural Changes during Colloidal Self-Assembly

Langmuir ◽  
2006 ◽  
Vol 22 (3) ◽  
pp. 897-900 ◽  
Author(s):  
Yaw Koon Koh ◽  
Chee Cheong Wong
Keyword(s):  
Self Assembly ◽  
Structural Changes ◽  
In Situ Monitoring

scholarly journals Synthesis of Poly(3-vinylpyridine)-Block-Polystyrene Diblock Copolymers via Surfactant-Free RAFT Emulsion Polymerization

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3145 ◽  
Author(s):  
Katharina Nieswandt ◽  
Prokopios Georgopanos ◽  
Clarissa Abetz ◽  
Volkan Filiz ◽  
Volker Abetz
Keyword(s):  
Emulsion Polymerization ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Free Water ◽  
Monomer Conversion ◽  
Molecular Weights ◽  
Reversible Addition

In this work, we present a novel synthetic route to diblock copolymers based on styrene and 3-vinylpyridine monomers. Surfactant-free water-based reversible addition–fragmentation chain transfer (RAFT) emulsion polymerization of styrene in the presence of the macroRAFT agent poly(3-vinylpyridine) (P3VP) is used to synthesize diblock copolymers with molecular weights of around 60 kDa. The proposed mechanism for the poly(3-vinylpyridine)-block-poly(styrene) (P3VP-b-PS) synthesis is the polymerization-induced self-assembly (PISA) which involves the in situ formation of well-defined micellar nanoscale objects consisting of a PS core and a stabilizing P3VP macroRAFT agent corona. The presented approach shows a well-controlled RAFT polymerization, allowing for the synthesis of diblock copolymers with high monomer conversion. The obtained diblock copolymers display microphase-separated structures according to their composition.

scholarly journals In Situ Monitoring of Alkanethiol Self‐Assembly onto Zinc Selenide: The Role of Substrate Pretreatment and Its Implication in Bacterial Attachment

2020 ◽  
Vol 7 (22) ◽  
pp. 2000848
Author(s):  
Elena Yunda ◽  
Fabienne Quilès ◽  
David Horwat ◽  
Raúl Gago ◽  
Jaafar Ghanbaja ◽  
...  
Keyword(s):  
Zinc Selenide ◽  
Self Assembly ◽  
Bacterial Attachment ◽  
In Situ Monitoring ◽  
Substrate Pretreatment

In situ monitoring of metal nanoparticle self-assembly on protein-functionalized glass by broadband optical waveguide spectroscopy

2004 ◽  
Vol 271 (1) ◽  
pp. 249-253 ◽  
Author(s):  
Zhi-mei Qi ◽  
Naoki Matsuda ◽  
Jose Santos ◽  
Takamitsu Yoshida ◽  
Akiko Takatsu ◽  
...  
Keyword(s):  
Optical Waveguide ◽  
Self Assembly ◽  
Metal Nanoparticle ◽  
In Situ Monitoring

scholarly journals Dextran-Coated Latex Nanoparticles via Photo-RAFT Mediated Polymerization Induced Self-Assembly

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4064
Author(s):  
Valeria Lizeth Romero Castro ◽  
Brahim Nomeir ◽  
Ana Andreea Arteni ◽  
Malika Ouldali ◽  
Jean-Luc Six ◽  
...  
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Chain Transfer ◽  
Degree Of Polymerization ◽  
Amphiphilic Copolymers ◽  
Shell Nanoparticles ◽  
Transmission Electron Microscopy Analysis ◽  
Hydroxypropyl Methacrylate ◽  
Electron Microscopy Analysis

Polysaccharide coated nanoparticles represent a promising class of environmentally friendly latex to replace those stabilized by small toxic molecular surfactants. We report here an in situ formulation of free-surfactant core/shell nanoparticles latex consisting of dextran-based diblock amphiphilic copolymers. The synthesis of copolymers and the immediate latex formulation were performed directly in water using a photo-initiated reversible addition fragmentation chain transfer-mediated polymerization induced self-assembly strategy. A hydrophilic macromolecular chain transfer-bearing photosensitive thiocarbonylthio group (eDexCTA) was first prepared by a modification of the reducing chain end of dextran in two steps: (i) reductive amination by ethylenediamine in the presence of sodium cyanoborohydride, (ii) then introduction of CTA by amidation reaction. Latex nanoparticles were then formulated in situ by chain-extending eDexCTA using 2-hydroxypropyl methacrylate (HPMA) under 365 nm irradiation, leading to amphiphilic dextran-b-poly(2-hydroxypropyl methacrylate) diblock copolymers (DHX). Solid concentration (SC) and the average degree of polymerization - Xnˉ- of PHPMA block (X) were varied to investigate their impact on the size and the morphology of latex nanoparticles termed here SCDHX. Light scattering and transmission electron microscopy analysis revealed that SCDHX form exclusively spherical nano-objects. However, the size of nano-objects, ranging from 20 nm to 240 nm, increases according to PHPMA block length.

Au@Ag nanorod horizontal arrays: Self-assembly preparation and in situ monitoring SERS of plasmonic catalytic reaction

2020 ◽  
Vol 834 ◽  
pp. 155139 ◽  
Author(s):  
Zhu Lu ◽  
Jun Dong ◽  
Qingyan Han ◽  
Wei Gao ◽  
Yongkai Wang ◽  
...  
Keyword(s):  
Catalytic Reaction ◽  
Self Assembly ◽  
In Situ Monitoring
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