发明名称 |
Analysis method of absolute molecular weight and molecular weight distribution of low-substituted hydroxypropyl cellulose |
摘要 |
<p>Provided is a method for determining the absolute molecular weight and molecular weight distribution of low-substituted hydroxypropyl cellulose by using the light scattering method. More specifically, provided is a method for determining the absolute molecular weight and molecular weight distribution of low-substituted hydroxypropyl cellulose comprising steps of carbanilating a portion or all of the hydroxyl groups of the low-substituted hydroxypropyl cellulose, dissolving the carbanilated cellulose in a solvent to prepare a sample solution, and analyzing the resulting sample solution by subjecting it to gel permeation chromatography coupled with light scattering with a solvent identical or similar in kind to the solvent as a mobile phase.
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申请公布号 |
EP1550864(A3) |
申请公布日期 |
2006.10.18 |
申请号 |
EP20040257657 |
申请日期 |
2004.12.09 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
FUKASAWA, MIYUKI;OBARA, SAKAE;HAYAKAWA, KAZUHISA |
分类号 |
G01N30/74;B01J20/285;G01N15/02;G01N30/06;G01N30/26;G01N30/78;G01N30/86;G01N30/88;G01N33/15;G01N33/44 |
主分类号 |
G01N30/74 |
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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