Macromolecules of poly-(12-acryloylaminododecanoic acid) in organic solvent: Synthesis and molecular characteristics

Abstract

a b s t r a c tThe samples of poly(12-acryloylaminododecanoic acid) were synthesized in micellar solutions of the monomer. The possibility of obtaining polymeric ionogenic surfactants of different molecular masses by varying concentration of monomeric surfactant was demonstrated. Detailed studies of the obtained polymer were performed using macromolecular hydrodynamic methods, dynamic light scattering, scanning probe microscopy and flow birefringence. The parameter of equilibrium rigidity of macromolecules (the Kuhn segment length A ¼ 62 Â 10 À8 cm) and their effective hydrodynamic diameter were determined in mixed solvent (dioxane-cyclohexanol). Contributions made by optical microform and macroform effects to the observed dynamic birefringence were analyzed in detail. The intrinsic optical anisotropy of the monomer unit was estimated; it correlates well with the corresponding values for comb-shaped polymers of similar structure.

Conformational, optical, electro-optical, and dynamic characteristics of cross-linked poly(N-acryloyl-11-aminoundecanoic acid)

“…We have supposed that this phenomenon is caused by the presence of amide groups in side moieties of PAAUA macromolecules which are directly linked to the main polymer chain. Analogous results were obtained for the similar polymer (poly(N-acryloyl-12-aminododecanoic acid)), PAADA) [30]. It was also demonstrated that electric birefringence in solutions of comb-like polymer (PAAUA) occurs according to the deformation mechanism (at the expense of orientation of dipole moments of polymer side groups in electric field) [29].…”

“…The obtained data on intrinsic viscosity [η] and translational diffusion coefficient D were used to calculate molecular masses of polymers М from the hydrodynamic invariant relationshipA 0 ≡η 0 DðM η ½ Þ 1=3 =T , where T is the measurement temperature. The value of A 0 = 3.26 × 10 −10 erg K −1 mol −1/3 for PAAUA coinciding with that for PAADA (which is close to PAAUA in structure [29,30]) was used as the mean value of hydrodynamic invariant.…”

“…The data obtained by this method include distribution of relaxation times corresponding to different mechanisms involved in the motion of components of a molecular system [27,28]. Combination of this method with other techniques provides information about conformational and molecular mass characteristics of a system [29,30]. Anisotropy of optical polarizability of a monomer unit is a sensitive indicator of its structure; thus, it is successfully used for analysis of monomer unit structure.…”

Colloid solution of surfactant monomers and polyelectrolyte: Polymerization and properties of the resulting interpolyelectrolyte complexes

“…The experiments were performed using LCsolution software; the obtained results were subsequently processed by the GPC-Postrun Analysis program. Dynamic light scattering (DLS) and static light scattering (SLS) are very efficient in the analysis of molecular characteristics of polymers, PECs and IPECs [8,[14][15][16][17][18][19][20]. The "PhotoCor-Complex" setup (Photocor Instruments Inc., Moscow, Russia) was used in light scattering experiments; the spectrometer was equipped with a real-time correlator (288 channels, 10 ns).…”

Hydrophobic Polymers Flooding

“…Freedman et al [34] reported the first synthesis of vinyl monomers [35], which also functioned as emulsifying agents [36,31]. Typical polymerizable groups that have been exploited are vinyl, allyl, acrylate, methacrylate, styryl, and acrylamide [37].…”