Synthesis of exfoliated PMMA/Na-MMT nanocomposites via soap-free emulsion polymerization

被引:195
作者
Choi, YS [1 ]
Choi, MH [1 ]
Wang, KH [1 ]
Kim, SO [1 ]
Kim, YK [1 ]
Chung, IJ [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Chem Engn, Yusong Gu, Taejon 305701, South Korea
关键词
D O I
10.1021/ma0106494
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
PMMA/Na-MMT nanocomposites were synthesized through a soap-free emulsion polymerization of methyl methacrylate (MMA) using 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS). A conventional anionic surfactant, dodecylbenzenesulfonic acid sodium salt (DBS-Na), was also used to compare with AMPS in the interaction with pristine Na-MMT. Both surfactants were intercalated into the layers of the pristine Na-MMT dispersed in water before polymerization. The nanocomposites with AMPS were exfoliated during polymerization because AMPS made the polymer end-tethered on pristine Na-MMT. The nanocomposites were exfoliated up to the 10 wt% content of pristine Na-MMT relative to the amount of MMA. The molecular weight of PMMA obtained from the nanocomposite with AMPS decreased, and the glass transition temperature (T-g) and storage modulus (E') of the nanocomposites became higher as the amount of Na-MMT increased.
引用
收藏
页码:8978 / 8985
页数:8
相关论文
共 64 条
[31]  
2-P
[32]   Stability of diblock copolymer/layered silicate nanocomposite thin films [J].
Limary, R ;
Swinnea, S ;
Green, PF .
MACROMOLECULES, 2000, 33 (14) :5227-5234
[33]   Modeling the phase behavior of polymer-clay composites [J].
Lyatskaya, Y ;
Balazs, AC .
MACROMOLECULES, 1998, 31 (19) :6676-6680
[34]   SYNTHESIS AND BARRIER PROPERTIES OF POLY(EPSILON-CAPROLACTONE)-LAYERED SILICATE NANOCOMPOSITES [J].
MESSERSMITH, PB ;
GIANNELIS, EP .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1995, 33 (07) :1047-1057
[35]   CHARACTERIZATION OF UNIMOLECULAR MICELLES OF RANDOM COPOLYMERS OF SODIUM 2-(ACRYLAMIDO)-2-METHYLPROPANESULFONATE AND METHACRYLAMIDES BEARING BULKY HYDROPHOBIC SUBSTITUENTS [J].
MORISHIMA, Y ;
NOMURA, S ;
IKEDA, T ;
SEKI, M ;
KAMACHI, M .
MACROMOLECULES, 1995, 28 (08) :2874-2881
[36]   Traditional and new applications for kaolin, smectite, and palygorskite: a general overview [J].
Murray, HH .
APPLIED CLAY SCIENCE, 2000, 17 (5-6) :207-221
[37]   Clay platelet dispersion in a polymer matrix [J].
Muzny, CD ;
Butler, BD ;
Hanley, HJM ;
Tsvetkov, F ;
Peiffer, DG .
MATERIALS LETTERS, 1996, 28 (4-6) :379-384
[38]  
Ogata N, 1997, J APPL POLYM SCI, V66, P573, DOI 10.1002/(SICI)1097-4628(19971017)66:3<573::AID-APP19>3.0.CO
[39]  
2-W
[40]   POLY(PYRROLE) AND POLY(THIOPHENE)/CLAY NANOCOMPOSITES VIA LATEX-COLLOID INTERACTION [J].
ORIAKHI, CO ;
LERNER, MM .
MATERIALS RESEARCH BULLETIN, 1995, 30 (06) :723-729