Results 251 to 260 of about 90,812 (270)

Non-thermally initiated RAFT polymerization-induced self-assembly

Polymer Chemistry, 2021
This review summarizes the recent non-thermal initiation methods in RAFT mediated polymerization-induced self-assembly (PISA), including photo-, redox/oscillatory reaction-, enzyme- and ultrasound wave-initiation.
Nankai An, Xi Chen, Jinying Yuan
openaire   +1 more source

Photo-PISA: Shedding Light on Polymerization-Induced Self-Assembly

ACS Macro Letters, 2015
Herein we report an aqueous photoinitiated polymerization-induced self-assembly (photo-PISA) for the preparation of a remarkably diverse set of complex polymer nanoparticle morphologies (e.g., spheres, worms, and vesicles) at room temperature. Ultrafast polymerization rates were achieved, with near quantitative monomer conversion within 15 min of ...
Jianbo, Tan, Hao, Sun, Mingguang, Yu, Brent S, Sumerlin, Li, Zhang   +4 more
openaire   +2 more sources

Reactive and Functional Nanoobjects by Polymerization‐Induced Self‐Assembly

Macromolecular Rapid Communications, 2018
AbstractPolymerization‐induced self‐assembly (PISA) is becoming a standard technique for generating core–shell polymeric nanoparticles of various morphologies ranging from classic spheres to rods/fibers (“worm‐like”) and vesicles. After the initial quest for polymerization control in dispersed media, the focus of PISA research has drastically shifted ...
Dao Le, Dominic Keller, Guillaume Delaittre   +2 more
openaire   +3 more sources

Self-assembly of nanoparticles employing polymerization-induced phase separation

Journal of Colloid and Interface Science, 2014
Nanoparticles (NPs) may be homogeneously dispersed in the precursors of a polymer (reactive solvent) by an adequate selection of their stabilizing ligands. However, the dispersion can become metastable or unstable in the course of polymerization.
Williams, Roberto Juan Jose, Hoppe, Cristina Elena, Zucchi, Ileana Alicia, Romeo, Hernan Esteban, Dell'Erba, Ignacio Esteban, Gómez, María L., Puig, Julieta, Leonardi, Agustina Belen   +7 more
openaire   +3 more sources

Polymerization techniques in polymerization-induced self-assembly (PISA)

Polymer Chemistry, 2020
The development of controlled/“living” polymerization greatly stimulated the prosperity of the fabrication and application of block copolymer nano-objects.
Chao Liu, Chun-Yan Hong, Cai-Yuan Pan
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Gradient Polymerization–Induced Self‐Assembly: A One‐Step Approach

Macromolecular Rapid Communications, 2019
AbstractIn this work, the authors report a novel single‐step, one‐pot process for the synthesis of self‐assembled nanoparticles using a polymerization‐induced self‐assembly (PISA) mechanism. In contrast to conventional approaches employing a pre‐formed macromolecular stabilizer, the disparate reactivities between two monomers, oligo(ethylene glycol ...
Sihao Xu, Tong Zhang, Rhiannon P. Kuchel, Jonathan Yeow, Cyrille Boyer   +4 more
openaire   +2 more sources

Divergent photoiniferter polymerization-induced self-assembly

Polymer Chemistry
Wavelength-dependent photoreactions present an opportunity to achieve chemoselectivity of functional groups that otherwise demonstrate similar reactivity under traditional thermal conditions.
Alexander J. Wong, Cabell B. Eades, Jared I. Bowman, Cullen L. G. Davidson, Brent S. Sumerlin   +4 more
openaire   +1 more source

Aqueous-Phase Ring-Opening Metathesis Polymerization-Induced Self-Assembly

ACS Macro Letters, 2018
We report aqueous-phase Ring-Opening Metathesis Polymerization-Induced Self-Assembly (ROMPISA) for forming well-defined micellar polymer nanoparticles at room temperature and high solids concentration (20 w/w%). This is achieved with a new polymerization initiator, in the form of a water-soluble cationic Hoveyda-Grubbs second generation catalyst.
Daniel B. Wright, Mollie A. Touve, Matthew P. Thompson, Nathan C. Gianneschi   +3 more
openaire   +2 more sources

Like-Charge PISA: Polymerization-Induced Like-Charge Electrostatic Self-Assembly

ACS Macro Letters, 2023
We report the use of l-aspartic acid chiral ionic hydrogen bonds to drive liquid-liquid phase separation (LLPS) and precision two-dimensional electrostatic self-assembly in photo-RAFT aqueous polymerization-induced self-assembly (photo-PISA). Homopolymerization can yield salt-resistant, 3 nm ultrafine fibril-structured 5 nm ultrathin lamellae via LLPS,
Caihui Luo, Xiyu Wang, Yuanyuan Liu, Jie Cai, Xinhua Lu, Yuanli Cai   +5 more
openaire   +2 more sources

UV light-initiated RAFT polymerization induced self-assembly

Polymer Chemistry, 2015
Reversible addition–fragmentation chain transfer (RAFT) polymerization induced self-assembly (PISA) initiated by UV light is exploited as a new strategy to prepare polymeric nanomicelles at room temperature.
Zhenzhong Liu, Gongjun Zhang, Wei Lu, Youju Huang, Jiawei Zhang, Tao Chen   +5 more
openaire   +1 more source