An investigation into novel multifunctional cross-linkers effect on microgel prepared by precipitation polymerization

被引：20
作者：
Es-haghi, H. [1 ]
Bouhendi, H. [2 ]
Marandi, G. Bagheri [1 ]
Zohurian-Mehr, M. J. [2 ]
Kabiri, K. [2 ]
机构：
[1] Islamic Azad Univ, Karaj Branch, Dept Chem, Karaj, Iran
[2] Iran Polymer & Petrochem Inst, Tehran, Iran
来源：
REACTIVE & FUNCTIONAL POLYMERS | 2013年 / 73卷 / 03期
关键词：
Multi-functional cross-linkers; Poly(acrylic acid) microgels; Precipitation polymerization; Network properties; Rheology; RHEOLOGICAL PROPERTIES; ACRYLIC-ACID; HYDROGEL; BEHAVIOR; COPOLYMERS; PHASE; GELS;
D O I：
10.1016/j.reactfunctpolym.2012.11.006
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Novel microgels composed of acrylaic acid and multifunctional cross-linkers, acrylate/methacrylate cross-linkers, were synthesized via thermal initiated free radical precipitation polymerization in organic solvents. The effect of cross-linker functionality, on the properties of microgels was investigated. Results showed both the solvent absorbency and apparent viscosity depend on the network structure, the crosslinker functionality and number of hydrophobic groups. Gel content indicated more reactivity of acrylate than methacrylate cross-linkers. A linear relation exists between elastic modulus (G') and functionality (f). Also the results suggested an equation that confirmed a direct relationship between glass transition temperature (T-g) and (f). The rotational and apparent viscosity results supported the thickening properties of the microgels. Based on the observations, it is concluded that trifunctional AC cross-linker (TMPTA) choose as an improvement of thickening properties over another cross-linkers. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：524 / 530
页数：7
相关论文
共 35 条
[1]   Characterization of super-absorbent material based on carboxymethylcellulose sodium salt prepared by electron beam irradiation [J].
Abd El-Rehim, HA ;
Hegazy, ESA ;
Diaa, DA .
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, 2006, A43 (01) :101-113
[2]  
[Anonymous], 2003, ANGEW CHEM-GER EDIT
[3]   Incorporation of small quantities of surfactants as a way to improve the rheological and diffusional behavior of carbopol gels [J].
Barreiro-Iglesias, R ;
Alvarez-Lorenzo, C ;
Concheiro, A .
JOURNAL OF CONTROLLED RELEASE, 2001, 77 (1-2) :59-75
[4]   RHEOLOGICAL PROPERTIES OF CARBOPOL GELS .2. OSCILLATORY PROPERTIES OF CARBOPOL GELS [J].
BARRY, BW ;
MEYER, MC .
INTERNATIONAL JOURNAL OF PHARMACEUTICS, 1979, 2 (01) :27-40
[5]   Rheology of co-continuous phase in physical thermoplastic elastomers [J].
Barzegari, MR ;
Yousefi, AA ;
Zeynali, ME ;
Rabii, A ;
Rodrigue, D .
POLYMER INTERNATIONAL, 2004, 53 (10) :1448-1455
[6]  
Bouhendi H, 2009, IRAN POLYM J, V18, P777
[7]   Rheological study on mucoadhesivity of some nasal powder formulations [J].
Callens, C ;
Ceulemans, J ;
Ludwig, A ;
Foreman, P ;
Remon, JP .
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS, 2003, 55 (03) :323-328
[8]   Rheological, dielectric and diffusion analysis of mucin/carbopol matrices used in amperometric biosensors [J].
Capra, Raul H. ;
Aruzzi, Ana M. B. ;
Quinzani, Lidia M. ;
Strumia, Miriam C. .
SENSORS AND ACTUATORS B-CHEMICAL, 2007, 124 (02) :466-476
[9]   Synthesis, characterization, and hydrolytic degradation behavior of a novel biodegradable pH-sensitive hydrogel based on polycaprolactone, methacrylic acid, and poly(ethylene glycol) [J].
Chao, Guo Tao ;
Qian, Zhi Yong ;
Huang, Mei Juan ;
Kan, Bing ;
Gu, Ying Chun ;
Gong, Chang Yang ;
Yang, Jin Liang ;
Wang, Ke ;
Dai, Mei ;
Li, Xing Yi ;
Gou, Ma Ling ;
Tu, Ming Jing ;
Wei, Yu Quan .
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A, 2008, 85A (01) :36-46
[10]   Preparation of narrow-disperse or monodisperse poly([poly(ethylene glycol) methyl ether acrylate]-co-(acrylic acid)} microspheres with ethyleneglycol dimethacrylate as crosslinker by distillation precipitation polymerization [J].
Dai, Zhao ;
Yang, Xinlin ;
Huang, Wenqiang .
POLYMER INTERNATIONAL, 2007, 56 (02) :224-230
1234