Synthesis and characterization of positively charged amphiphilic water soluble polymers based on poly(N-isopropylacrylamide)

被引:41
作者
Bokias, G [1 ]
Hourdet, D [1 ]
机构
[1] Univ Paris 06, Lab Physicochim Macromol, CNRS, UMR 7615,ESPCI, F-75231 Paris 05, France
关键词
N-isopropylacrylamide; hydrophobically modified polymers; copolymerization kinetics;
D O I
10.1016/S0032-3861(01)00147-1
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The synthesis and characterization of new water-soluble shear-responsive polymers based on N-isopropylacrylamide (NIPAM) is reported. These copolymers are synthesized using a two-steps procedure: (a) synthesis of the precursors by radical copolymerization in aqueous solvent between NIPAM and an amine-containing monomer N,N-[(dimethylamino)propyl]methacrylamide (MADAP) and (b) modification of the macromolecular backbone by reaction between MADAP units and alkylbromide. From kinetic studies performed during copolymerization, the reactivity ratios of the two monomers were determined in media of different ionic strength (r(NIPAM) = 0.6 and r(MADAP) = 0.6 - 1.3). Under these conditions, it was shown that the composition and the distribution of NIPAM and MADAP units into the macromolecular backbone remain approximately constant until 80% of conversion. Wr all the copolymers, in the composition range 0-25 mol% of MADAP units, an effective control of the molar mass is reported with the concentration of the reducing agent involved in the redox initiator. Finally, a quantitative alkylation procedure of MADAP units is described in chloroform using an inactive base and a large excess of alkylbromide. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:6329 / 6337
页数:9
相关论文
共 34 条
[1]   COPOLYMERIZATION OF ACRYLAMIDE WITH CATIONIC MONOMERS IN SOLUTION AND INVERSE-MICROSUSPENSION [J].
BAADE, W ;
HUNKELER, D ;
HAMIELEC, AE .
JOURNAL OF APPLIED POLYMER SCIENCE, 1989, 38 (01) :185-201
[2]   Positively charged amphiphilic polymers based on poly(N-isopropylacrylamide):: Phase behavior and shear-induced thickening in aqueous solution [J].
Bokias, G ;
Hourdet, D ;
Iliopoulos, I .
MACROMOLECULES, 2000, 33 (08) :2929-2935
[3]   Molar mass control of poly(N-isopropylacrylamide) and poly(acrylic acid) in aqueous polymerizations initiated by redox initiators based on persulfates [J].
Bokias, G ;
Durand, A ;
Hourdet, D .
MACROMOLECULAR CHEMISTRY AND PHYSICS, 1998, 199 (07) :1387-1392
[4]   KINETICS AND MECHANISM OF THE QUATERNIZATION OF POLY(4-VINYL PYRIDINE) WITH ALKYL AND ARYLALKYL BROMIDES IN SULFOLANE [J].
BOUCHER, EA ;
MOLLETT, CC .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1982, 78 :75-88
[5]   KINETICS AND MECHANISM OF QUATERNIZATION OF POLY(4-VINYL PYRIDINE) WITH ETHYL, N-PROPYL, N-BUTYL, N-HEXYL AND BENZYL BROMIDE IN SULFOLANE [J].
BOUCHER, EA ;
GROVES, JA ;
MOLLETT, CC ;
FLETCHER, PW .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1977, 73 :1629-1635
[6]   EFFECT OF PH ON REACTIVITY RATIOS IN COPOLYMERIZATION OF ACRYLIC ACID AND ACRYLAMIDE [J].
CABANESS, WR ;
LIN, TYC ;
PARKANYI, C .
JOURNAL OF POLYMER SCIENCE PART A-1-POLYMER CHEMISTRY, 1971, 9 (08) :2155-&
[7]   Time-resolved fluorescence anisotropy studies of the temperature-induced intramolecular conformational transition of poly(N-isopropylacrylamide) in dilute aqueous solution [J].
Chee, CK ;
Rimmer, S ;
Soutar, I ;
Swanson, L .
POLYMER, 1997, 38 (02) :483-486
[8]   GRAFT-COPOLYMERS THAT EXHIBIT TEMPERATURE-INDUCED PHASE-TRANSITIONS OVER A WIDE-RANGE OF PH [J].
CHEN, GH ;
HOFFMAN, AS .
NATURE, 1995, 373 (6509) :49-52
[9]   SWELLING OF THIN FILMS .1. ACRYLAMIDE-N-ISOPROPYLACRYLAMIDE COPOLYMERS IN WATER [J].
CHIKLIS, CK ;
GRASSHOFF, JM .
JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1970, 8 (09) :1617-+
[10]   POLYMERIZATION OF METHACRYLAMIDE IN AQUEOUS SOLUTION .3. COPOLYMERIZATION WITH ACRYLAMIDE [J].
DAINTON, FS ;
SISLEY, WD .
TRANSACTIONS OF THE FARADAY SOCIETY, 1963, 59 (486) :1385-&