TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Urdl, Katharina
A1  - Weiss, Stephanie
A1  - Karpa, Alexandra
A1  - Perić, Matea
A1  - Zikulnig-Rusch, Edith
A1  - Brecht, Marc
A1  - Kandelbauer, Andreas
A1  - Müller, Uwe
A1  - Kern, Wolfgang
T1  - Furan-functionalised melamine-formaldehyde particles performing Diels-Alder reactions
JF  - European polymer journal : EPJ
N2  - Functionalised particles are highly requested in materials research, as they can be used as vital components in many advanced applications such as smart materials, functional coatings, drug carrier systems or adsorption materials. In this study, furan-functionalised melamine-formaldehyde (MF) particles were successfully prepared for the first time using an organic sol-gel process. Commercially available 2-Aminomethylfuran (AMF) and 2-Aminomethyl-5-methylfuran (AMMF) were used as modifying agents. In the isolated polymer particles, a melamine (M) to modifying agent ratio of M:AMF mol/mol 2.04:1 and M:AMMF ratio of mol/mol 1.25:1 was used. The obtained particles were isolated in various centrifugation and re-dispersion cycles and analysed using ATR-FT-IR, Raman and solid state 13C NMR spectroscopy, TGA, SEM and DSC measurements. Upon functionalisation the size of the MF particles increased (MF 1.59 µm, 27% CV (coefficient of variation); MF-AMF 2.56 µm, 25% CV; MF-AMMF 2.20 µm, 35% CV). DSC measurements showed that another type of exothermic residual reactivity besides condensation-based curing takes place with the furan-modified particles that is not related to the liberation of volatile compounds. The newly obtained particles are able to undergo Diels-Alder reactions with maleimide groups. The characteristic IR and Raman absorbance bands of the reaction products after the particles were reacted with 4,4′-Diphenylmethanebismaleimide reagent confirm the formation of a Diels-Alder adduct.
KW  - thermoset
KW  - Melamine-formaldehyde
KW  - Furan-functionalised particle
KW  - Diels-Alder reaction
Y1  - 2018
SN  - 0014-3057
SS  - 0014-3057
U6  - https://doi.org/https://doi.org/10.1016/j.eurpolymj.2018.08.023
DO  - https://doi.org/https://doi.org/10.1016/j.eurpolymj.2018.08.023
VL  - 108
SP  - 225
EP  - 234
S1  - 10
PB  - Elsevier
CY  - Oxford
ER  -