Abstract
A new polyamide with tweezer-type dipyrenyl end-groups was successfully synthesized. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The synthesis of polyamine involved reaction of Jeffamine 400 with isophthaloyl dichloride in the presence of ca. 20 mol% of the aminomethyl-substituted tweezer-molecue to end-cap the chains and control the degree of polymerization. The MALDI-ToF mass spectrum of polyamide exhibited well resolved signals consistent with the production of bis end-capped chains containing up to three Jeffamine 400 segments. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The results show that blend has an enhanced ultimate tensile strength and greatly increased modulus of toughness and elongation.
| Original language | English |
|---|---|
| Pages (from-to) | 6-8 |
| Number of pages | 3 |
| Journal | Chemistry of Materials |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2011 Jan 11 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Chemistry
- Chemical Engineering(all)
- Chemistry(all)
Cite this
A supramolecular polymer based on tweezer-type π?π stacking interactions : Molecular design for healability and enhanced toughness. / Burattini, Stefano; Greenland, Barnaby W.; Hayes, Wayne; MacKay, Michael E.; Rowan, Stuart J.; Colquhoun, Howard M.
In: Chemistry of Materials, Vol. 23, No. 1, 11.01.2011, p. 6-8.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A supramolecular polymer based on tweezer-type π?π stacking interactions
T2 - Molecular design for healability and enhanced toughness
AU - Burattini, Stefano
AU - Greenland, Barnaby W.
AU - Hayes, Wayne
AU - MacKay, Michael E.
AU - Rowan, Stuart J.
AU - Colquhoun, Howard M.
PY - 2011/1/11
Y1 - 2011/1/11
N2 - A new polyamide with tweezer-type dipyrenyl end-groups was successfully synthesized. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The synthesis of polyamine involved reaction of Jeffamine 400 with isophthaloyl dichloride in the presence of ca. 20 mol% of the aminomethyl-substituted tweezer-molecue to end-cap the chains and control the degree of polymerization. The MALDI-ToF mass spectrum of polyamide exhibited well resolved signals consistent with the production of bis end-capped chains containing up to three Jeffamine 400 segments. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The results show that blend has an enhanced ultimate tensile strength and greatly increased modulus of toughness and elongation.
AB - A new polyamide with tweezer-type dipyrenyl end-groups was successfully synthesized. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The synthesis of polyamine involved reaction of Jeffamine 400 with isophthaloyl dichloride in the presence of ca. 20 mol% of the aminomethyl-substituted tweezer-molecue to end-cap the chains and control the degree of polymerization. The MALDI-ToF mass spectrum of polyamide exhibited well resolved signals consistent with the production of bis end-capped chains containing up to three Jeffamine 400 segments. The new material differs from a related but mechanically much weaker blend solely in the strength of specified supramolecular interactions between the components, rather than in the chain-structures of the polymers themselves. The results show that blend has an enhanced ultimate tensile strength and greatly increased modulus of toughness and elongation.
UR - http://www.scopus.com/inward/record.url?scp=78751639709&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78751639709&partnerID=8YFLogxK
U2 - 10.1021/cm102963k
DO - 10.1021/cm102963k
M3 - Article
AN - SCOPUS:78751639709
VL - 23
SP - 6
EP - 8
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 1
ER -