发明名称 |
DETERMINATION OF THE REACTION ADVANCEMENT OF GRAFT POLYMERIZATION REACTIONS |
摘要 |
<p>A method of using Raman Spectra for determining the progress of a graft polymerization reaction is disclosed. The method entails (a) measuring at the beginning of the reaction and at a plurality of time intervals in the course of the reaction, continuously and on-site, the Raman spectrum in the wave number range of 100 to 4000 cm<SUP>-1 </SUP>of one or more of the monomers and/or polymers entailed in the reaction and of at least one internal standard and (b) recording the spectra and (c) adding reaction partners necessary to the reaction continuously and/or discontinuously and (d) calculating the change in concentration of the monomers and polymers by comparing the spectra of the monomers or polymers with the internal standard.</p> |
申请公布号 |
EP1442284(B1) |
申请公布日期 |
2008.03.12 |
申请号 |
EP20020802305 |
申请日期 |
2002.10.24 |
申请人 |
LANXESS DEUTSCHLAND GMBH |
发明人 |
WOLF, UDO;BORN, RALF-JUERGEN;BUCHHOLZ, VERA;EICHENAUER, HERBERT;WENZ, ECKHARD;BERGMEIER, WILHELM;BODEN, CHRISTOF |
分类号 |
G01N21/65;C08F4/40;C08F279/04;C08F291/00 |
主分类号 |
G01N21/65 |
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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