Open AccessSynthesis and characterization of PEE‐PEO diblock copolymers with complementary end‐groups for hydrogen‐bond heteroassociation
Author(s) -
Zhang Peng,
Moore Jeffrey S.
Publication year - 2000
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/(sici)1099-0518(20000101)38:1<207::aid-pola26>3.0.co;2-9
Subject(s) - copolymer , polymer chemistry , end group , chemistry , gel permeation chromatography , ethylene oxide , polymer , anionic addition polymerization , differential scanning calorimetry , polymerization , hydrogen bond , organic chemistry , molecule , physics , thermodynamics
Poly(ethylethylene‐ b ‐ethylene oxide) (PEE‐PEO) diblock copolymers with pyridine‐benzoic acid end‐groups for heterodimeric hydrogen bonding were designed as a possible means to noncentrosymmetric organizations by spontaneous self‐assembly. These end‐functionalized polymers were synthesized by anionic living polymerization with protected initiator and terminating reagents. A series of polymeric intermediates with different end‐groups was characterized by proton nuclear magnetic resonance, matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry, and gel permeation chromatography. Preliminary studies of solid‐state organization by differential scanning calorimetry and small‐angle X‐ray scattering provided evidence for a long‐range order that was sensitive to chain length, copolymer composition, and end‐group structure. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 207–219, 2000