Citation: ZHANG Shuxiang, LI Xiaoyu, CHEN Yong, XIA Yuzheng, JIAO Shuke. WATER STATES IN SBR BASED WATER SWELLING RUBBER[J]. Chinese Journal of Polymer Science, ;1998, 16(4): 345-350. shu

WATER STATES IN SBR BASED WATER SWELLING RUBBER

Received Date: 13 March 1998

Water swelling rubber (WSR) was prepared by reaction blending SBR andsodium polyacrylate (PAANa). The existing states of water in the WSR was studied bymeans of DSC and TG. It was found that water exists in three states: nonfreezing water,bound freezable water and free water. The relationships between water states and structureof PAANa were investigated. The results showed that the amount of non-freezing waterwas related to total water content, and the ratio of non-freezing water versus -COONa groups on PAANa(mol/mol) was about 4.However,total water content slightly affected the content of bound freezable water and remarkably affected the amount of free waer.
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