AB/ABC/ABCD supramolecular block copolymers from Hamilton wedge and barbiturate-functionalized RAFT agents

作者：Chen Senbin; Rocher Mathias; Ladaviere Catherine; Gerard Jean Francois; Lortie Frederic; Bernard Julien^*

来源：Polymer Chemistry, 2012, 3(11): 3157-3165.

DOI：10.1039/c2py20340e

Two RAFT agents bearing respectively a Hamilton receptor (HR) and barbiturate (Ba) recognition units have been designed and proven to selectively associate. Polymerizations mediated by these CTAs afforded high molar mass tailor-made H-bonding homopolymers and block copolymers. The capacity of the resulting macromolecular building blocks to form sextuple H-bonded complexes allowed for the straightforward preparation of original AB, ABC and ABCD supramolecular block copolymers with relatively high binding constants (K-assoc similar to 1.59 to 1.95 x 10(5) M-1 in toluene at 25 degrees C).

• 出版日期2012-11