Adhesives are indispensable in modern life and production
and adhesives that are biodegradable
sustainable
and reversible adhesive have gained significant momentum. Herein
2-urea-4[1
H
]-pyrimidinone terminated poly(carbonate ether) (UPPC) and functionalized ethyl cellulose (UEC) were synthesized via the coupling reaction between 2-urea-4[1
H
]-pyrimidinone isocyanate (UPy-NCO) and poly(carbonate ether) diol (
M
n
around 2000
carbonate unit content=28%
33%
45%
51%
and 66%) or ethyl cellulose (
M
n
=11700). Through solution blending
supramolecular complexes composed of UPPC and UEC were successfully prepared
and the effects of the structure and content of UPPC on the adhesion properties of the supramolecular complexes were studied. When the content of UPPC33% is 70wt%
the supramolecular complex UPPC33%
7
/UEC
3
displays a high adhesion strength of 7.4 MPa on steel
which is three times that of UPPC33%. In addition
UPPC33%
7
/UEC
3
displayed reversible adhesive properties in response to heat
and its adhesion strength decreased by only 10% after repeated use for 6 consecutive times.