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Title: Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers

Abstract

Porous polymers with well-orchestrated nanomorphologies are useful in many fields, but high surface area, hierarchical structure, and ordered pores are difficult to be satisfied in one polymer simultaneously. A solvent-induced self-assembly strategy to synthesize hierarchical porous polymers with tunable morphology, mesoporous structure, and microporous pore wall is reported. The poly(ethylene oxide)-b-polystyrene (PEO-b-PS) diblock copolymer micelles are cross-linked via Friedel–Crafts reaction, which is a new way to anchor micelles into porous polymers with well-defined structure. Varying the polarity of the solvent has a dramatic effect upon the oleophobic/oleophylic interaction, and the self-assembly structure of PEO-b-PS can be tailored from aggregated nanoparticles to hollow spheres even mesoporous bulk. A morphological phase diagram is accomplished to systematically evaluate the influence of the composition of PEO-b-PS and the mixed solvent component on the pore structure and morphology of products. The hypercrosslinked hollow polymer spheres provide a confined microenvironment for the in situ reduction of K 2PdCl 4 to ultrasmall Pd nanoparticles, which exhibit excellent catalytic performance in solvent-free catalytic oxidation of hydrocarbons and alcohols.

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [1];  [2]
  1. Jilin Univ., Changchun (China). State Key Lab. of Inorganic Synthesis and Preparative Chemistry
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Jilin Univ., Changchun (China)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Young Thousand Talented Program (China); National Natural Science Foundation of China (NNSFC); “111” Project of the Ministry of Education of China
OSTI Identifier:
1511925
Grant/Contract Number:  
AC05-00OR22725; 21671073; 21621001; 21671074; B17020
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 31; Journal Issue: 11; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; hierarchical porous polymer; hypercrosslinked polymer; porous material; solvent-free catalysis; solvent-induced self-assembly

Citation Formats

Gao, Tu‐Nan, Wang, Tao, Wu, Wei, Liu, Yali, Huo, Qisheng, Qiao, Zhen‐An, and Dai, Sheng. Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers. United States: N. p., 2019. Web. doi:10.1002/adma.201806254.
Gao, Tu‐Nan, Wang, Tao, Wu, Wei, Liu, Yali, Huo, Qisheng, Qiao, Zhen‐An, & Dai, Sheng. Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers. United States. doi:10.1002/adma.201806254.
Gao, Tu‐Nan, Wang, Tao, Wu, Wei, Liu, Yali, Huo, Qisheng, Qiao, Zhen‐An, and Dai, Sheng. Fri . "Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers". United States. doi:10.1002/adma.201806254.
@article{osti_1511925,
title = {Solvent-Induced Self-Assembly Strategy to Synthesize Well-Defined Hierarchically Porous Polymers},
author = {Gao, Tu‐Nan and Wang, Tao and Wu, Wei and Liu, Yali and Huo, Qisheng and Qiao, Zhen‐An and Dai, Sheng},
abstractNote = {Porous polymers with well-orchestrated nanomorphologies are useful in many fields, but high surface area, hierarchical structure, and ordered pores are difficult to be satisfied in one polymer simultaneously. A solvent-induced self-assembly strategy to synthesize hierarchical porous polymers with tunable morphology, mesoporous structure, and microporous pore wall is reported. The poly(ethylene oxide)-b-polystyrene (PEO-b-PS) diblock copolymer micelles are cross-linked via Friedel–Crafts reaction, which is a new way to anchor micelles into porous polymers with well-defined structure. Varying the polarity of the solvent has a dramatic effect upon the oleophobic/oleophylic interaction, and the self-assembly structure of PEO-b-PS can be tailored from aggregated nanoparticles to hollow spheres even mesoporous bulk. A morphological phase diagram is accomplished to systematically evaluate the influence of the composition of PEO-b-PS and the mixed solvent component on the pore structure and morphology of products. The hypercrosslinked hollow polymer spheres provide a confined microenvironment for the in situ reduction of K2PdCl4 to ultrasmall Pd nanoparticles, which exhibit excellent catalytic performance in solvent-free catalytic oxidation of hydrocarbons and alcohols.},
doi = {10.1002/adma.201806254},
journal = {Advanced Materials},
issn = {0935-9648},
number = 11,
volume = 31,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:
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Works referenced in this record:

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