Results 291 to 300 of about 92,008 (304)

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

Polymerization-induced self-assembly driving chiral nanostructured materials

Polymer Chemistry, 2015
Amino acid coated chiral nanostructured soft materials are made by the polymerization induced self-assembly (PISA) technique, where the post-polymerization chemical group transformation leads to a morphological transition.
Kamal Bauri, Amal Narayanan, Ujjal Haldar, Priyadarsi De   +3 more
openaire   +1 more source

Vitrimer Nanocomposites from Polymerization‐Induced Self‐Assembly

Advanced Materials
AbstractVitrimers, a class of covalent adaptable networks (CANs), promise sustainability through recyclability and reprocessability, yet suffer from creep under prolonged stress due to dynamic bond exchange. Here, a materials design strategy is reported that integrates polymerization‐induced self‐assembly (PISA) to embed core‐crosslinked nanoparticles ...
Thi H. Le, Kevin A. Stewart, Cabell B. Eades, Jared I. Bowman, Nathan B. Wei, Brent S. Sumerlin   +5 more
openaire   +1 more source

Precise Mesoscopic Model Providing Insights into Polymerization-Induced Self-Assembly

Langmuir, 2020
Self-assembly of copolymer is an important approach to obtain multifarious nanostructures. Polymerization-induced self-assembly (PISA) is a recently developed and powerful copolymer self-assembly strategy. However, some researchers have reported a different morphology prepared by PISA and the traditional copolymer self-assembly using the same copolymer
Junfeng Wang, Timing Fang, Jiawei Li, Youguo Yan, Zhen Li, Jun Zhang   +5 more
openaire   +2 more sources

Star Architecture Promoting Morphological Transitions during Polymerization-Induced Self-Assembly

ACS Macro Letters, 2017
Polymerization-induced self-assembly (PISA) via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization is an effective method to produce block copolymer nano-objects of various morphologies at high solids. However, current PISA formulations have been limited to linear block copolymers.
Xiao Wang, C. Adrian Figg, Xiaoqing Lv, Yongqi Yang, Brent S. Sumerlin, Zesheng An   +5 more
openaire   +2 more sources

Trending methods employed for polymerization induced self-assembly

New Journal of Chemistry, 2020
Mother Nature produces a perfectly defined architecture that inspires researchers to make polymeric macromolecules for an array of functions. The present article describes recent development in the PISA to synthesize polymeric nano-objects.
openaire   +1 more source

Polymerization-Induced Self-Assembly Promoted by Liquid–Liquid Phase Separation

ACS Macro Letters, 2019
Polymerization-induced self-assembly (PISA) is a powerful method for the synthesis of polymeric kinetically frozen core nanoparticles. However, the PISA synthesis of biologically important polymeric fluidic materials is unexplored. Herein we present a liquid-liquid phase separation mode PISA.
Yi Ding, Qingqing Zhao, Lei Wang, Leilei Huang, Qizhou Liu, Xinhua Lu, Yuanli Cai   +6 more
openaire   +2 more sources