发明名称 |
Method for rapid determination of composition of polycarbonate resin |
摘要 |
The invention comprises UV/visible spectroscopic analysis of polycarbonate composition. The method comprises determination of the concentration of Fries products, as either total Fries products or as separate determinations of linear and branched components. The method also allows for simultaneous determination of uncapped phenolic end-groups. Determinations may be performed at a single wavelength or over the entire absorption band. The method is suitable for measuring of Fries products in samples ranging in size from small scale combinatorial formats to production scale reactors. The method is independent of reaction variables such as polymer molecular weight, reactor type, and reaction temperature.
|
申请公布号 |
US2003063282(A1) |
申请公布日期 |
2003.04.03 |
申请号 |
US20010682654 |
申请日期 |
2001.10.02 |
申请人 |
POTYRAILO RADISLAV ALEXANDROVICH;MCCLOSKEY PATRICK JOSEPH |
发明人 |
POTYRAILO RADISLAV ALEXANDROVICH;MCCLOSKEY PATRICK JOSEPH |
分类号 |
G01N21/27;G01N21/33;(IPC1-7):G01N21/00 |
主分类号 |
G01N21/27 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|