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Novel amphiphilic linear polymer/dendrimer block copolymer: Synthesis of poly(2‐methyl‐2‐oxazoline)‐ block ‐poly(amido amine) dendrimer
Author(s) -
Aoi Keigo,
Motoda Aki,
Okada Masahiko,
Imae Toyoko
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030181008
Subject(s) - dendrimer , copolymer , amphiphile , polymer chemistry , polymer , oxazoline , materials science , amine gas treating , block (permutation group theory) , linear polymer , chemistry , polymer science , organic chemistry , mathematics , geometry , catalysis
Novel linear polymer/dendrimer block copolymers, poly(2‐methyl‐2‐oxazoline)‐ block ‐poly(amido amine) dendrimers (water‐soluble full‐generation type 4 ( G = 4.0 and 5.0) and amphiphilic half‐generation type 5 ( G = 3.5, 4.5, and 5.5)), were synthesized by divergent‐growth dendrimer construction with ω‐ethylenediamine‐terminated poly(2‐methyl‐2‐oxazoline), which was prepared by living ring‐opening polymerization of 2‐methyl‐2‐oxazoline. Assembly of the amphiphilic dendrimer‐based block copolymer ( G = 5.5) was investigated by surface tension measurements (critical micelle concentration, 0.49 wt.‐%) and by small‐angle neutron scattering analysis (spherical particles; assembled number, ca. 10 3 ).