Thermal stability and long-acting antibacterial activity of phosphonium montmorillonites

被引：25

作者：

Cai Xiang ^{[1
]}

Tan Shao-zao ^{[1
]}

Liao Ma-hua ^{[1
]}

Wu Ting ^{[1
]}

Liu Ren-fu ^{[1
]}

Yu Biao ^{[1
]}

机构：

[1] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2010年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

phosphonium montmorillonite; quaternary salts; surfactant; microstructure; thermal stability; long-acting antibacterial activity; water resistance; NANOCOMPOSITE COATINGS; ADSORPTION; DEGRADATION; CLAY; SORPTION; SALTS; WATER; ACID;

D O I：

10.1007/s11771-010-0511-7

中图分类号：

TF [冶金工业];

学科分类号：

080601 [冶金物理化学];

摘要：

Na-montruorillonite (Na-MMT) was exchanged with three quaternary alkylphosphonium salts: decyl tributylphosphonium bromide (DTBPBr), dodecyl tributylphosphonium bromide (DDTBPBr) and hexadecyl tributylphosphonium bromide (HDTBPBr), to investigate the effects of phosphonium salts species and relative molecular mass on the characteristics, morphology, thermal stability and long-acting antibacterial property of phosphonium montmorillonites. The resulting modified montmorillonites were characterized by the FTLR, XRD, TEM, and TG/DTG techniques. And minimum inhibitory concentration (MIC) was used to investigate antibacterial activity. The results show that the phosphonium salts are intercalated into Na-MMT, and the basal spacing of P-MMTs is enlarged with the increase of phosphonium salt content or the growth of alkyl chain length. DDTBP-MMT-3 with 19.83% (mass fraction) of dodecyl tributylphosphonium salts, displays excellent thermal stability and long-acting antibacterial activity.

引用

页码：485 / 491

页数：7

共 25 条

[1]

Thermal degradation studies of alkyl-imidazolium salts and their application in nanocomposites [J].