Surfactant induced mesomorphic behaviour of flexible polymers

Olli Ikkala*, Janne Ruokolainen, Mika Torkkeli, Ritva Serimaa, Gerrit ten Brinke

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)


Conditions for micro phase separated structures based on flexible polymers associated with surfactants have been investigated. Reasonably strong attractive interactions are required to oppose macro phase separation between polymer and surfactant. In order to obtain micro phase separation, additionally a sufficiently strong polar-nonpolar repulsion has to be present. Poly(4-vinyl pyridine), poly(2-vinyl pyridine) and polyamide 6 have been used as model polymers in this work. Associations based on protonation, metal coordination and hydrogen bonding are presented and shown to yield micro phase separation under suitable conditions. In the charged systems, the polar-nonpolar repulsion easily becomes large enough to render micro phase separated structures. In hydrogen bonded ( i.e. noncharged) systems a more delicate balance can be achieved in which case an order-disorder transition takes place from a homogeneous state, exhibiting nonetheless a distinct SAXS peak due to characteristic block copolymer-like fluctuations, to a micro phase separated ordered state.

Original languageEnglish
Pages (from-to)191-198
Number of pages8
JournalMacromolecular Symposia
Issue number1
Publication statusPublished - Dec 1996
MoE publication typeA1 Journal article-refereed


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