|
Title
|
|
|
|
Formation of Poly(ε-caprolactone) Networks via Supramolecular Hydrogen Bonding Interactions
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| In this contribution, we reported a novel approach to crosslink poly(ε-caprolactone) (PCL) via supramolecular hydrogen bonding interactions. First, a series of octa-armed poly(ε-caprolactone) stars with polyhedral oligomeric silsesquioxane (POSS) cores were synthesized via the ring-opening polymerizations. Thereafter, the arm ends of organic-inorganic star-shaped PCLs were reacted with 2-(6- isocyanatohexylaminocarbonylamino)-6-methyl-4[1H]-pyrimidinone to obtain 2-ureido-4[1H]-pyrimidone (UPy)-terminated PCL stars. Notably, the UPy-terminated PCL stars were physically crosslinked, which was evidenced by means of dynamic mechanical thermal analysis (DMTA) and rheological analysis. Owing to the formation of the physically-crosslinked networks, the organic-inorganic PCL stars displayed significant shape memory properties with about 100% of shape recovery, which was in marked contrast to the PCL stars without UPy termini. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Chinese journal of polymer science / Chinese Chemical Society. - Beijing
|
|
|
Publication
|
|
|
|
Beijing
:
2019
|
|
|
ISSN
|
|
|
|
0256-7679
|
|
|
DOI
|
|
|
|
10.1007/S10118-019-2199-Y
|
|
|
Volume/pages
|
|
|
|
37
:3
(2019)
, p. 197-207
|
|
|
ISI
|
|
|
|
000456711900001
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|
|
Full text (publisher's version - intranet only)
|
|
|
|
|
|