1991
DOI: 10.1021/ma00026a001
|View full text |Cite
|
Sign up to set email alerts
|

Thermally reversible polymer linkages. 3. Covalently crosslinked poly(azlactone)

Abstract: Research on the azlactone-phenol reaction has been extended to cross-linking chemistry. Poly-(2-vinyl 4,4-dimethyl-2-oxazolin-5-one) was used to synthesize three-dimensional networks using bisphenol cross-linkers. Among the bisphenols considered, only bisphenols containing electron-withdrawing groups at the site para to the phenol hydroxyls cross-link the polymer. The bisphenol 4,4'-(perfluorobutanediyl-1,4disulfonyl)diphenol was also found to facilitate the reverse reaction in high-boiling solvents, re-formin… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

0
6
0

Year Published

1993
1993
2020
2020

Publication Types

Select...
9
1

Relationship

0
10

Authors

Journals

citations
Cited by 27 publications
(6 citation statements)
references
References 3 publications
0
6
0
Order By: Relevance
“…Nucleophilic addition reaction involving ring opening have also received attention as thermal CANs. Linear polymers with either pendant maleic acid23, 24 or azlactone25 functional groups crosslinked by a bis-alcohol have been shown as a viable thermoreversible crosslinking reaction; however, these materials have limited reversibility owing to various side reactions 26. Carbene dimerization is another candidate reaction for the basis of a thermal CAN (reaction 2 in Figure 2).…”
Section: Can Structure and Fabricationmentioning
confidence: 99%
“…Nucleophilic addition reaction involving ring opening have also received attention as thermal CANs. Linear polymers with either pendant maleic acid23, 24 or azlactone25 functional groups crosslinked by a bis-alcohol have been shown as a viable thermoreversible crosslinking reaction; however, these materials have limited reversibility owing to various side reactions 26. Carbene dimerization is another candidate reaction for the basis of a thermal CAN (reaction 2 in Figure 2).…”
Section: Can Structure and Fabricationmentioning
confidence: 99%
“…For this study, the temperature, which is the easier way for industrialization, has been chosen. Systems such as the urethane group, 4 nitroso group, 5 ester group, 6 ionene complex, [7][8][9][10] azlactone-phenol adduct 11,12 and, lastly, the Diels-Alder adduct [13][14][15][16][17][18] allow the formation of reversible covalent bonds under high temperature conditions. The Diels-Alder system was chosen for this project, in spite of existing studies, 14,[19][20][21] because this is the most famous and the easier system.…”
Section: Introductionmentioning
confidence: 99%
“…Temperature is the easier stimulus to break organic bonds between two molecules. Many well-known systems are capable of forming reversible covalent bonds at different temperatures [4][5][6][7][8][9][10][11][12][13][14][15][16]. However, the thermal reversibility can be used (and is used to a low extend) for other aims, such as the recycling of polymers or to protect reversible functional groups in order to control polymerization or crosslinking.…”
Section: Introductionmentioning
confidence: 99%