© Synthesis And Solution Properties Of A New PH-Responsive Polymer Containing Amino Propanesulfonic Acid Residues Ali, SA; Mazumder, MAJ; Al-Muallem, HA JOHN WILEY SONS INC, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY; pp: ; Vol: 41 King Fahd University of Petroleum & Minerals Summary The reaction of diallyl amine with 1,3-propane sultone led to the synthesis of the zwitterionic monomer 3-(N,N-diallylammonio)propanesulfonate. The sulfobetaine was cyclopolymerized in water in the presence of sodium chloride with t- butylhydroperoxide as an initiator to afford a polysulfobetaine (PSB) in very good yield. PSB, upon treatment with sodium hydroxide, was converted into an anionic polyelectrolyte (APE). Although APE was readily soluble in salt-free water, PSB needed the presence of low-molecular-weight salts (e.g., NaCl, KI, etc., in the range of N) for its dissolution. The solution properties of PSB and APE were investigated with potentiometric and viscometric techniques. The basicity constant of the amine was apparent and followed the modified Henderson-Hasselbalch equation; as the degree of protonation (alpha) of the whole macromolecule increases, the protonation of the amine nitrogens becomes increasingly more difficult. The composition and phase diagram of the aqueous two-phase systems of APE/PSB and poly(ethylene glycol) were also explored. (C) 2002 Wiley Periodicals, Inc. References: *STANF RES I, 1993, CHEM EC HDB, P581 ALBERTSSON P, 1986, PARTITION CELL PARTI, P35 ALI MM, 2000, POLYMER, V41, P5591 ALI SA, 1997, POLYMER, V38, P3385 ALI SA, 1999, POLYMER, V40, P2439 ALI SA, 1999, POLYMER, V40, P6849 ALI SA, 2001, POLYMER, V42, P7961 Copyright: King Fahd University of Petroleum & Minerals;

© ALI SA, 2002, J POLYM SCI POL CHEM, V40, P2464 ALMUALLEM HA, 2002, POLYMER, V43, P1041 ALMUALLEM HA, 2002, POLYMER, V43, P4285 ANTON P, 1993, MAKROMOL CHEM, V194, P601 BARBUCCI R, 1981, MACROMOLECULES, V14, P1203 BARBUCCI R, 1983, MACROMOLECULES, V16, P456 BARBUCCI R, 1986, MACROMOLECULES, V19, P1856 BARBUCCI R, 1986, MACROMOLECULES, V19, P37 BUTLER GB, 1951, J AM CHEM SOC, V73, P895 BUTLER GB, 1957, J AM CHEM SOC, V79, P3128 BUTLER GB, 1982, ACCOUNTS CHEM RES, V15, P370 BUTLER GB, 1992, CYCLOPOLYMERIZATION BUTLER GB, 1996, J POLYM SCI POL CHEM, V34, P913 FAVRESSE P, 2001, POLYMER, V42, P2755 FELTY WJ, 1978, J CHEM EDUC, V55, P576 FERRUTI P, 1984, ADV POLYM SCI, V58, P57 HACHEM F, 1996, ENZYME MICROB TECH, V19, P507 HARADA S, 1966, MAKROMOL CHEM, V90, P177 HARADA S, 1967, MAKROMOL CHEM, V107, P64 HIGGS PG, 1991, J CHEM PHYS, V94, P1543 HUGHES P, 1988, ENZYME MICROB TECHNO, V10, P115 KALADAS JJ, 1998, POLYM PREPR, V39, P619 KATHMANN EE, 1997, POLYMER, V38, P871 KATHMANN EEL, 1994, MACROMOLECULES, V27, P3156 KULA MR, 1982, ADV BIOCHEM ENG, V24, P73 LANCASTER JE, 1976, J POLYM SCI POL LETT, V14, P549 LU M, 1997, J CHROMATOGR A, V766, P99 MCCORMICK CL, 1996, J POLYM SCI POL CHEM, V34, P911 MONROYSOTO VM, 1984, POLYMER, V25, P254 MUMICK PS, 1994, MACROMOLECULES, V27, P323 OTTENBRITE RM, 1980, IND ENG CHEM PROD RD, V19, P528 OTTENBRITE RM, 1980, POLYM AMINES AMMONIU, P143 SALAMONE JC, 1978, POLYMER, V19, P1157 SALI A, 1994, NATURE, V369, P248 SCHULZ DN, 1986, POLYMER, V27, P1734 SHALABY SW, 1991, ACS SYM SER, V467, P175 SHALABY SW, 1991, ACS SYM SER, V467, P25 SKOURI M, 1994, MACROMOLECULES, V27, P69 SMITH TW, 1978, J ORG CHEM, V43, P6 SRIVASTAVA D, 1996, MACROMOLECULES, V29, P2324 THOMAS DB, 1999, POLYM PREPR AM CHEM, V40, P275 THOMAS DB, 1999, POLYM PREPR, V40, P193 TOPCHIEV DA, 1989, EUR POLYM J, V25, P1095 VOROBEVA AI, 1996, POLYM SCI SER A, V38, P1077 VYNCK V, 1997, J MACROMOL RAPID COM, V18, P149 WIELEMA TA, 1987, EUR POLYM J, V23, P947 Copyright: King Fahd University of Petroleum & Minerals;

54. © WOLYNES PG, 1995, SCIENCE, V267, P1619 For pre-prints please write to: Copyright: King Fahd University of Petroleum & Minerals;