Poly(N,N-dimethylacrylamide) Hydrogels Obtained by Frontal Polymerization

被引:55
作者
Caria, Giuseppe [1 ]
Alzari, Valeria [2 ]
Monticelli, Orietta [3 ]
Nuvoli, Daniele [1 ]
Kenny, Jose M. [2 ]
Mariani, Alberto [1 ]
机构
[1] Univ Sassari, Dipartimento Chim, UdR INSTM, I-07100 Sassari, Italy
[2] Univ Perugia, NIPLAB, UdR INSTM, Mat Engn Ctr, I-05100 Terni, Italy
[3] Univ Genoa, NIPLAB, UdR INSTM, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy
关键词
free radical polymerization; frontal polymerization; hydrogels; polyacrylamides; SEM; SOLVENT-FREE SYNTHESIS; NANOCOMPOSITES; NETWORKS; POLYURETHANE;
D O I
10.1002/pola.23251
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Frontal polymerization (FP) has been used as an alternative technique for the preparation of poly(N,N-dimethylacrylamide) hydrogels. Samples were synthesized in bulk, water, or dimethyl sulfoxide (DMSO), and the obtained materials were characterized and compared in terms of their yield, swelling behavior, thermal properties, and morphology. It was found that their features are dependent on the presence and type of the solvent used. Samples prepared in bulk are characterized by the lowest yields and the highest front temperatures (T-max) and velocities (V-f), whereas those synthesized in water have the highest yields and the lowest values of T-max and V-f. No significant differences have been found in terms of T-g among the three series of samples. By contrast, the reaction conditions influenced the porous morphology of the samples and, consequently, their swelling capability in water. The swelling ratio ranges from about 670-700% for some samples prepared in water up to 3500% for a sample obtained in DMSO, thus indicating that this parameter can be properly tuned by using the most suitable FP conditions. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1422-1428, 2009
引用
收藏
页码:1422 / 1428
页数:7
相关论文
共 49 条
[1]  
[Anonymous], ACS POLYM PREP
[2]  
BIDAL S, 2005, E-POLYMERS, V44, P1
[3]  
Brannon-Peppas L., 1990, ABSORBENT POLYM TECH, P1
[4]  
CAI X, 2008, POLYM SCI SER A, V46, P2177
[5]  
CHECHILO NM, 1972, DOKL AKAD NAUK SSSR+, V204, P1180
[6]  
Chekanov Y, 1997, J APPL POLYM SCI, V66, P1209
[7]   First solvent-free synthesis of poly(N-methylolacrylamide) via frontal free-radical polymerization [J].
Chen, Li ;
Hu, Ting ;
Yu, Huan ;
Chen, Su ;
Pojman, John A. .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (18) :4322-4330
[8]   Epoxy resin/polyurethane hybrid networks synthesized by frontal polymerization [J].
Chen, S ;
Tian, Y ;
Chen, L ;
Hu, T .
CHEMISTRY OF MATERIALS, 2006, 18 (08) :2159-2163
[9]   Polyurethane-nanosilica hybrid nanocomposites synthesized by frontal polymerization [J].
Chen, S ;
Sui, JJ ;
Chen, L ;
Pojman, JA .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2005, 43 (08) :1670-1680
[10]   A novel pH-sensitive hydrogel composed of N,O-carboxymethyl chitosan and alginate cross-linked by genipin for protein drug delivery [J].
Chen, SC ;
Wu, YC ;
Mi, FL ;
Lin, YH ;
Yu, LC ;
Sung, HW .
JOURNAL OF CONTROLLED RELEASE, 2004, 96 (02) :285-300