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Thermal stability and deformation of poly(acrylic acid)–metal oxides
Author(s) -
Wu HoShing,
Jone HeayChain,
Meng ShangShin
Publication year - 1997
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/(sici)1097-4628(19971205)66:10<2021::aid-app19>3.0.co;2-6
Subject(s) - acrylic acid , materials science , thermal stability , metal , oxide , compressive strength , curing (chemistry) , desorption , chemical engineering , composite material , polymer chemistry , chemistry , copolymer , adsorption , polymer , organic chemistry , metallurgy , engineering
In this work, we investigated the thermal stability and deformation of the compound of poly(acrylic acid) (PAA) and metal oxides (ZnO, CaO, CuO, Al 2 O 3 , and Cr 2 O 3 ). The kinetic parameters of the desorption of water from PAA–metal oxide were calculated. The activation energies of the water desorption of PAA–metal oxide were less than 5 kcal/mol. The order of bonding capability of oxygen (PAA–O–metal) and water was PAA–CaO > PAA–ZnO > PAA–CuO > PAA–Cr 2 O 3 > PAA–Al 2 O 3 . The reaction types of the composites were clarified. Incorporating metal oxide into PAA increased the thermal stability. The factors which influence the mechanical properties of the composites, e.g., the chemical compositions, curing environment, and curing time, were also studied. The various curing environments (pure water, 0.1 N HCl, 0.1 N NaOH, and methanol) decreased the compressive strength of PAA—metal oxide. Moreover, the thermal stability and compressive strength of PAA–ZnO and PAA–CuO reached an optimum because of their crosslinking nature. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 66: 2021–2027, 1997