Premium
Order ‐ disorder transitions in comb‐like polymer‐surfactant systems involving hydrogen bonds
Author(s) -
ten Brinke Gerrit,
Huh June,
Ruokolainen Janne,
Torkkeli Mika,
Serimaa Ritva,
Ikkala Olli
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971140130
Subject(s) - small angle x ray scattering , hydrogen bond , pulmonary surfactant , materials science , polymer , rheology , scattering , phase (matter) , chemical engineering , hydrogen , crystallography , chemical physics , polymer chemistry , molecule , composite material , chemistry , organic chemistry , optics , physics , engineering
Conditions to obtain micro‐phase separated morphologies in polymer‐surfactant systems involving hydrogen bonds have been investigated using poly(4‐vinyl pyridine) (P4VP) and surfactants capable of forming hydrogen bonds of different strength with the basic nitrogen of P4VP. Depending on the tail length, the hydrogen bonding strength, the amount of surfactant and the temperature, four different regimes have been identified: I. Micro‐phase separated state, II. Homogeneous state exhibiting a distinct Small Angle X‐ray Scattering (SAXS) peak, III. Homogeneous state without a SAXS peak and, IV. Macro‐phase separated state. Time‐resolved SAXS / W(ide) A(angle) X(ray) S(cattering) / D(ifferential) S(canning) C(alorimetry) as well as rheological measurements are used to identify the different regimes. A simplified model description together with preliminary computer simulation results are presented.