# PREPARATION AND PROPERTIES OF A WATER-SWELLING RUBBER BY IN SITU FORMED LITHIUM ACRYLATE IN NITRILE RUBBER

> Title: PREPARATION AND PROPERTIES OF A WATER-SWELLING RUBBER BY IN SITU FORMED LITHIUM ACRYLATE IN NITRILE RUBBER Page Range: p.181-190 Author(s): Wentan Ren; Zonglin Peng; Yong Zhang; Yinxi Zhang File size: 188K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal:...

Canonical URL: https://polymerjournals.com/preparation-and-properties-of-a-water-swelling-rubber-by-in-situ-formed-lithium-acrylate-in-nitrile-rubber/
Published: 2005-02-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: PREPARATION AND PROPERTIES OF A WATER-SWELLING RUBBER BY IN SITU FORMED LITHIUM ACRYLATE IN NITRILE RUBBER**
 Page Range: p.181-190
 Author(s): Wentan Ren; Zonglin Peng; Yong Zhang; Yinxi Zhang
 File size: 188K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc13-2&JournalID=100200&JIP=) (subscribers only)
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 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 13
 Issue No: No. 2

**Abstract**
 Lithium acrylate (LiAA) was in situ prepared in nitrile rubber (NBR) through neutralisation of lithium hydroxide (LiOH) and acrylic acid (AA) during mixing. The NBR/LiAA compounds were vulcanised with dicumyl peroxide (DCP). The in-situ preparation and polymerisation of LiAA were characterised using FTIR spectrometry. The micrographs of the compounds and vulcanisates were explored using SEM. The effects of DCP and LiAA contents on the water-swelling and mechanical properties of the vulcanisates were studied, and the relationship between the LiOH/AA molar ratio and the properties of the vulcanisates was investigated. Results showed that the in situ formed LiAA could improve the mechanical and water-swelling properties of the NBR/LiAA vulcanisates. Properly compounded vulcanisates were found to have high water-swelling ratios over 800%, and tensile strength of ore than 12MPa. DSC measurements indicated that he water absorbed in the vulcanisate existed in PLiAA and NBR networks in three different physical states, namely: free water, freezable bound water and non-freezable bound water. 36 refs.

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