Photophysical and Solution Properties of Naphthalene-Labeled Styrene/N,N-Dimethyl Maleimido Propylammonium Propane Sulfonate Copolymer

Abstract

The photophysical and solution properties of naphthalene-labeled styrene/N,N-dimethyl maleimido propylammonium propane sulfonate copolymer, poly(SDMPAPS)/NA, were studied in terms of fluorescence, cloud point, and viscosity measurements. The ratio of intensities of the excimer and monomer fluorescence (I E/I M) was shown as a function of polymer concentration in deionized water. The value of I E/I M decreases with an increase in the salt concentration. The addition of anionic surfactants to the aqueous solution of poly(SDMPAPS)/NA can either induce or break the interpolymer aggregation. When the electrolyte concentration increases, the Stern−Volmer quenching constant (K sv) also increases. The phase behavior of poly(SDMPAPS)/NA shows an upper critical solution temperature around 17 °C. The intrinsic viscosity of the poly(SDMPAPS)/NA in the presence of different salts reflects the influence of these salts on the hydrodynamic volume of the polymer chain for poly(SDMPAPS)/NA. A model of the interaction between poly(SDMPAPS)/NA and surfactant in aqueous solution is proposed.

Effect of Surfactant and Various Salts on Aqueous Solution Properties of Naphthalene-Labeled Poly(hydrochloride-quaternized 2-norbornene-5-methylamine) made by Ring-Opening Metathesis Polymerization (ROMP)

“…[24] Previous reports also have thoroughly examined the difference in dilute aqueous solution properties such as viscosity, hydrodynamic diameter, cloud point, and the degree of binding. [25][26][27][28][29][30][31] These properties provide a reasonable assessment of the macroscopic behavior, however, a detailed analysis using a more sensitive characterization method is required. When naphthalene labels were incorporated into the water-soluble polymer, photophysical properties and the behavior of polymers in aqueous solution could be clearly defined.…”

Synthesis and characterization of the poly(sulfobetaine)s and the corresponding cationic polymers derived fromN,N-dialkylamino phenyl methacrylamide

“…In addition, Fig. 1 shows low intrinsic viscosities of the zwitterionic poly(DEMAPhAPS) solution with low NaCl concentration resulting from the inter-and intra-associations of the polymer chains 37,40) . As the concentration of the salt was increased, the associations began to drop and the intrinsic viscosity began to increase.…”

“…Several authors have observed that higher salt concentration leads to lower inter-and intra-associations of polybetaines and, subsequently, to higher intrinsic viscosity 30,37,38,40) . Results obtained from the intrinsic viscosity for cationic poly(DEMMAPhAMS) are the opposite to those for zwitterionic poly(DEMAPhAPS).…”

“…Previous research work in our laboratory has also been carried out to examine the difference in dilute aqueous solution properties such as viscosity, cloud point, and degree of binding [35][36][37][38][39][40][41] . Furthermore, naphthalene labels were incorporated into the water-soluble polymer derived from maleic anhydride, and photophysical and aqueous solu- Intrinsic viscosities of poly(DEMMAPhAMS) (0) and poly-(DEMAPhAPS) (9) as a function of NaCl concentration tion properties of the polymers could be clearly defined [39][40][41] . In recent years attention has been focused on aqueous solution properties, photophysics, photochemistry, and the applications of the water-soluble copolymers containing hydrophobic residues and charged units 14) .…”

Optically-guided scalpel with light-scattering module for carpal tunnel surgical procedure via minimally invasive surgery

“…For the design of new medical applications, the selection of materials should be carefully considered. Several reports for the design, synthesis, and preparation of new functional materials were studied to find suitable materials for biomedical applications such as polyacrylate, polyester, polyamide, polyimide, polyester, polynorborene, polytetrafluoroethylene, polydiphenylacetylenes, and polymeric resins [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Also, surface modification technology was considered to change the surface microenvironment of the materials [17,18].…”