Synthesis and properties of thermo-responsive macroporous PAM-co-PNIPAM microspheres

被引：22

作者：

Hao, Li ^{[1
]}

Yang, Hong ^{[1
]}

Lei, Zhongli ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Minist Educ, Sch Chem & Mat Sci, Xian 710062, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 70卷

关键词：

Macroporous poly (acrylamide-co-N-isopropylacrylamide); microspheres; Thermo-responsive; Lower critical solution temperature (LCST); Large surface area;

D O I：

10.1016/j.matlet.2011.11.112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work. thermo-responsive macroporous Poly (acrylamide-co-N-isopropylacrylamide) (PAM-co-PNIPAM) microspheres with certain lower critical solution temperature (LCST) were synthesized by inverse suspension polymerization approach in the presence of toluene as porogenic agents. Various types of measurements, such as scanning electron microscopy (SEM), Fourier transform infrared (FT-IR). Laser Particle Size Distribution Analyzer, N-2 absorption analysis (BET) and Mercury Intrusion Porosimetry were conducted in characterizing PAM-co-PNIPAM particles. The results indicated that the obtained PAM-co-PNIPAM microspheres are perfect with porous structures which make the copolymer possess large surface area. And the size of the PAM-co-PNIPAM microspheres would change with the environmental temperature which is called thermo-responsive. Moreover, the copolymer synthesized from higher monomer weight ratio of AM/NIPAM has a relatively higher LCST. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：83 / 85

页数：3

共 13 条

[1] Preparation and Properties of Thermo-sensitive Organic/Inorganic Hybrid Microgels [J].

Cao, Zheng ;

Du, Binyang ;

Chen, Tianyou ;

Nie, Jingjing ;

Xu, Junting ;

Fan, Zhiqiang .

LANGMUIR, 2008, 24 (22) :12771-12778

[2] Synthesis of highly ordered, three-dimensional, macroporous structures of amorphous or crystalline inorganic oxides, phosphates, and hybrid composites [J].

Holland, BT ;

Blanford, CF ;

Do, T ;

Stein, A .

CHEMISTRY OF MATERIALS, 1999, 11 (03) :795-805

[3] Sol-gel-derived ceria nanoarchitectures: Synthesis, characterization, and electrical properties [J].

Laberty-Robert, C ;

Long, JW ;

Lucas, EM ;

Pettigrew, KA ;

Stroud, RM ;

Doescher, MS ;

Rolison, DR .

CHEMISTRY OF MATERIALS, 2006, 18 (01) :50-58

[4] Pore size of macroporous polystyrene microspheres affects lipase immobilization [J].

Li, Yan ;

Gao, Fei ;

Wei, Wei ;

Qu, Jian-Bo ;

Ma, Guang-Hui ;

Zhou, Wei-Qing .

JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, 2010, 66 (1-2) :182-189

[5] Polyacrylamide grafted attapulgite (PAM-ATP) via surface-initiated atom transfer radical polymerization (SI-ATRP) for removal of Hg(II) ion and dyes [J].

Liu, Peng ;

Guo, Jinshan .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 282 (498-503) :498-503

[6]

LU Y, 2008, MICROPOR MESOPOR MAT, V114, P507, DOI DOI 10.1016/J.MICROMESO.2007.12.027

[7] Hydroxylated poly(N-isopropylacrylamide) as functional thermoresponsive materials [J].

Maeda, T ;

Kanda, T ;

Yonekura, Y ;

Yamamoto, K ;

Aoyagi, T .

BIOMACROMOLECULES, 2006, 7 (02) :545-549

[8] Porous tin oxide nanostructured microspheres for sensor applications [J].

Martinez, CJ ;

Hockey, B ;

Montgomery, CB ;

Semancik, S .

LANGMUIR, 2005, 21 (17) :7937-7944

[9] Polymer gels (Reprinted from Functional Monomers and Polymers, pg 497-528, 1997) [J].

Osada, Y ;

Gong, JP ;

Tanaka, Y .

JOURNAL OF MACROMOLECULAR SCIENCE-POLYMER REVIEWS, 2004, C44 (01) :87-112

[10] Preparation of poly-(NIPAM) grafted hybrid silica particles with hollow structure in emulsion [J].

Park, Chang-Yong ;

Lee, Yong-Geun ;

Oh, Chul ;

Oh, Seong-Geun .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2010, 16 (01) :32-38

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