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Polymer characteristics and fracture morphology of radiation-polymerized styrene-impregnated mortar

Journal Article · · J. Appl. Polym. Sci.; (United States)
Mechanical and durability properties and the fracture morphology of polystyrene-impregnated mortar composites prepared by impregnation of styrene and its in situ polymerization by gamma radiation have been studied. Variation of flexural strength of the composites, percent extractable polystyrene, and its molecular weight suggest crosslinking of the impregnated polymer under the influence of prolonged gamma irradiation. Moreover, crosslinking appears to contribute toward the improvement in flexural strength but has little effect on durability properties. SEM (scanning electron micrographs) of the composites reveal a very weak cement-polymer interfacial bonding which is believed to be responsible for poor durability properties of the composites. 17 references, 10 figures, 2 tables.
Research Organization:
Indian Inst. of Tech., Kharagpur
OSTI ID:
6016054
Journal Information:
J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 29:6; ISSN JAPNA
Country of Publication:
United States
Language:
English