发明名称 |
Sulphonation process for low crosslinked polystyrene |
摘要 |
Crosslinked styrenic polymers may be sulphonated in a controlled manner in an organic solvent at elevated temperature using SO3 in the presence of a trialkyl phosphate. The process does not introduce further crosslinking into the polymer permitting it to have an extremely high water uptake. The resulting polymer is useful as a hydrogel.
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申请公布号 |
US5280082(A) |
申请公布日期 |
1994.01.18 |
申请号 |
US19930037662 |
申请日期 |
1993.03.24 |
申请人 |
CAMELOT TECHNOLOGIES, INC. |
发明人 |
BEDELL, STANLEY F.;NEMPHOS, SPEROS P. |
分类号 |
C08F8/36;(IPC1-7):C08F8/36 |
主分类号 |
C08F8/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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