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Rapid synthesis of poly( p ‐dioxanone)/montmorillonite nanocomposites under microwave irradiation
Author(s) -
Wang XiuLi,
Li Ying,
Li Bo,
Wang YuZhong
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36540
Subject(s) - montmorillonite , nanocomposite , materials science , thermogravimetry , thermal stability , polymer chemistry , polymerization , microwave , transmission electron microscopy , nuclear chemistry , polymer , chemical engineering , chemistry , composite material , nanotechnology , physics , quantum mechanics , engineering
A rapid and “green” synthesis of poly( p ‐dioxanone) (PPDO)/montmorillonite (MMT) nanocomposites was carried out smoothly and effectively nder constant microwave powers of 30, 60, 90, and 120 W in a microwave oven at a frequency of 2.45 GHz. The temperature of polymerization was in the range 103–224°C. PPDO, with a viscosity‐average molecular weight of 111,000 g/mol and a conversion of 85%, was obtained at 60 W for 10 min, in which the ratio of p ‐dioxanone to AlEt 3 was 300/1 (mol/mol). The intercalated structure of PPDO/MMT nanocomposites was confirmed by X‐ray diffraction and transmission electron microscopy. Thermogravimetry data showed that the thermal stability of the nanocomposites prepared under microwave irradiation was improved with respect to those prepared via conventional heating. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012