Order and Liquid Crystalline Phase Behavior of Polyacid-Tertiary Amine Complexes

Talroze, R. V.; Kuptsov, S. A.; Sycheva, T. I.; Безбородов, В. С.; Platè, N.A.

doi:10.1021/ma00129a032

Cited by 71 publications

(68 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, it is appealing to consider whether the two 'blocks' could be synthesized separately, each at their optimal conditions, and let to interact only afterwards to form block copolymer-like physically bonded complexes. Several aspects of mesomorphic structures of complexes between flexible polymers and surfactants, or more generally end-functionalized oligomers, have been presented during recent years [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. (2) Selforganization of polymeric complexes is interesting even in its own right, as is also suggested in biochemistry.…”

Section: Introductionmentioning

confidence: 99%

Ordering in self-organizing comb copolymer-like systems obtained by hydrogen bonding between charged or noncharged polymers and amphiphiles

Ikkala¹,

Ruokolainen²,

Torkkeli³

et al. 1999

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

Ordering in self-organizing comb copolymer-like systems obtained by hydrogen bonding between charged or noncharged polymers and amphiphiles Ikkala, O.; Ruokolainen, J.; Torkkeli, M.; Tanner, J.; Serimaa, R.; Brinke, G. ten Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. AbstractMesomorphic structures and order-disorder transitions in comb copolymer-like systems obtained by hydrogen bonding of noncharged or charged homopolymers with amphiphiles are discussed. The amphiphiles consist of attractive and repulsive moieties and the emphasis will be on the situation without an additional solvent phase. Poly(4-vinyl pyridine), i.e. P4VP, hydrogen bonded to stoichiometric amounts of pentadecylphenol (PDP) is one of the characteristic examples. Small angle X-ray scattering and dynamic rheology demonstrate that this system forms a disordered melt at temperatures above the order-disorder temperature (T ODT ), whereas for TBT ODT a lamellar microphase separated structure is observed. Further cooling renders side chain crystallization. This phase behavior can be tailored by adjusting the attraction and the repulsion between the amphiphile and the polymer. Repulsion can be increased by making the alkyl chain longer or by adding charges to the backbone. Both lead in general to a higher T ODT . Order-disorder transitions can occur even in polyelectrolyte-amphiphile complexes as is demonstrated by first fully complexing P4VP with toluene sulphonic acid (TSA) to form a polymeric salt P4VP(TSA) 1.0 which is further hydrogen bonded to PDP. The presented results offer guidelines to apply the concepts to other polymers as well, with an example mentioned in relation to polyamide 6.

show abstract

Section: Introductionmentioning

confidence: 99%

Ordering in self-organizing comb copolymer-like systems obtained by hydrogen bonding between charged or noncharged polymers and amphiphiles

Ikkala¹,

Ruokolainen²,

Torkkeli³

et al. 1999

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] The phase behavior of polymer systems is dominated by the ubiquitous unfavorable interactions between unlike species. In the case of polymer blends this usually leads to undesirable macrophase separation.…”

Section: Introductionmentioning

confidence: 99%

Micro- and macrophase separation in blends of reversibly associating one-end-functionalized polymers

Huh

Brinke

1998

The Journal of Chemical Physics

View full text Add to dashboard Cite

Phase diagrams for reversibly associating one-end-functionalized chain molecules ͑with an emphasis on hydrogen bonding͒ are determined by computer simulations of a cubic lattice model employing canonical and grand canonical Monte Carlo methods. Due to the relatively short chain lengths used, the stability of the homogeneous state is strongly enhanced compared to mean-field random phase approximation predictions. Characteristic phenomenon such as reappearing phases and macrophase separation into two phases, at least one of which is microphase separated, are observed and discussed.

show abstract

“…In supramolecular LCs, ionic bonding is often used to bind together two oppositely charged components, [1][2][3][4][5][6] as an alternative to the very popular hydrogen-bonding interaction. [2][3][4]7,8] This is the case for the construction of supramolecular side-chain LC polymers achieved by the ionic complexation of polyelectrolytes with oppositely charged surfactants, [9][10][11][12][13] with surfactomesogens (SMs), [1,[14][15][16][17][18][19] or with other ionic molecules such as ionic dyes. [6,[20][21][22][23] The ionic bond is attractive, in part, for its more robust and thermally stable character compared to the hydrogen bond in situations where these characteristics are desirable.…”

Section: Introductionmentioning

confidence: 99%

Solvent Manipulation of Liquid Crystal Order and Other Properties in Azo‐Containing Surfactomesogen/Poly(styrene sulfonate) Complexes

Zhang

Bazuin

2010

Macro Chemistry & Physics

View full text Add to dashboard Cite

Stoichiometric ionically bonded side‐chain polymer complexes of poly(styrene sulfonate) and quaternary ammonium‐functionalised azo‐containing surfactomesogens were exposed to controlled humidity atmosphere, to organic non‐solvents (acetone, THF, ethyl acetate) and to a good solvent (DMF) for the complex. This modifies or increases the packing order, and includes induction of a crystal‐like lamellar structure that is amenable to photoisotropisation. The molecular packing order influences photoinduced birefringence relaxation. Conditions for frozen‐in morphologies are discussed in the light of higher temperature data. The observed diversity of phase changes upon solvent exposure is comparable to what is observed in surfactant–polyelectrolyte complexes.magnified image

show abstract

Order and Liquid Crystalline Phase Behavior of Polyacid-Tertiary Amine Complexes

Cited by 71 publications

References 2 publications

Ordering in self-organizing comb copolymer-like systems obtained by hydrogen bonding between charged or noncharged polymers and amphiphiles

Ordering in self-organizing comb copolymer-like systems obtained by hydrogen bonding between charged or noncharged polymers and amphiphiles

Micro- and macrophase separation in blends of reversibly associating one-end-functionalized polymers

Solvent Manipulation of Liquid Crystal Order and Other Properties in Azo‐Containing Surfactomesogen/Poly(styrene sulfonate) Complexes

Contact Info

Product

Resources

About