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Linear‐Dendritic Alternating Copolymers
Author(s) -
Sun Haotian,
Haque Farihah M.,
Zhang Yi,
Commisso Alex,
Mohamed Mohamed Alaa,
Tsianou Marina,
Cui Honggang,
Grayson Scott M.,
Cheng Chong
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201903402
Subject(s) - dendrimer , copolymer , diacetylene , click chemistry , ethylene glycol , azide , polymer chemistry , reactivity (psychology) , alkyne , polymerization , chemistry , polymer , materials science , organic chemistry , catalysis , medicine , alternative medicine , pathology
Herein, the design, synthesis, and characterization of an unprecedented copolymer consisting of alternating linear and dendritic segments is described. First, a 4th‐generation Hawker‐type dendron with two azide groups was synthesized, followed by a step‐growth azide‐alkyne “click” reaction between the 4th‐generation diazido dendron and poly(ethylene glycol) diacetylene to create the target polymers. Unequal reactivity of the functional groups was observed in the step‐growth polymerization. The resulting copolymers, with alternating hydrophilic linear and hydrophobic dendritic segments, can spontaneously associate into a unique type of microphase‐segregated nanorods in water.