Journal article
Tunable Supramolecular Hexagonal Columnar Structures of Hydrogen-Bonded Copolymers Containing Two Different Sized Dendritic Side Chains
ACS macro letters, v 6(4), pp 479-484
01 Apr 2017
PMID: 35610860
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Polymer structures with tunable symmetry and sizes are desired for applications such as lithography, filtration membranes, and separation. Here we report the self-assembled supramolecular hexagonal columnar (OH) structures with tunable lattice size varying from 5 to 7 nm by constructing hydrogen-bonded copolymers bearing poly(4-vinylpyridine) (P4VP) and two dendritic molecular additives, 1-[4'-(3 '',4 '',5 ''-tridecyloxybenzoyloxy)phenyleneoxycarbonyl]-3-[(4 ''-hydroxyphenypoxycarbonyl]benzene (12CBP) and 4-hydroxyphenyl (3,4,5-tridecyloxy)benzoate (12CTB). Despite the distinct molecular size difference between 12CBP and 12CTB, the resulting ternary supramolecular copolymers, P4VP(12CBP)(x)(12CTB)(y), possess a homogeneous Phi(H) phase at x >= 0.1 and y >= 0.2. Each column is constructed with P4VP as the backbone tethered with mixed side chains. The column diameter is between the size of the corresponding P4VP(12CBP)(x+y) and P4VP(12CTB)(x+y) and could be easily tuned by varying x and y. The enhancement of Phi(H) in supramolecular copolymers is attributed to the entropy effect of the mixed side chain and enthalpy effect from hydrogen bonding interaction of the P4VP backbone and two molecules (12CBP and 12CTB).
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Details
- Title
- Tunable Supramolecular Hexagonal Columnar Structures of Hydrogen-Bonded Copolymers Containing Two Different Sized Dendritic Side Chains
- Creators
- Yongchen Cai - Soochow UniversityMeiqing Zheng - Soochow UniversityYalan Zhu - Soochow UniversityXiao-Fang Chen - Soochow Univ, Suzhou Key Lab Macromol Design & Precis Synth,Col, Jiangsu Key Lab Adv Funct Polymer Design & Applic, State & Local Joint Engn Lab Novel Funct Polymer, Suzhou 215123, Peoples R ChinaChristopher Y. Li - Drexel University
- Publication Details
- ACS macro letters, v 6(4), pp 479-484
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 6
- Grant note
- 21174003; 21474073 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) A Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000399961200031
- Scopus ID
- 2-s2.0-85017574705
- Other Identifier
- 991019168337404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Polymer Science