MONITORING POLYMERISATION AND METHOD OF SELECTING DEFINING INDICATOR

摘要

FIELD: chemistry. ^ SUBSTANCE: monitoring method involves: a) calculation of target value of defining indicator (LIT) and b) changing at least one parametre to change the defining indicator to a new target value. In one method of monitoring polymerisation, the defining indicator (LIT) corresponds to the target polymer product and is determined by: LIT=(In(FIT)-A1-C'1ùFlH)/C'2. In another method, the target value of the defining indicator (LIT) is determined by: LIT=LIP+C'4+C'3ù(FIH-FIHO). Also the defining indicator (LI) can be calculated using the formula: . Methods of monitoring and regulating polymerisation reactions involve reactions which lead to production of multimodal polymer products using several catalysts in a single reactor. ^ EFFECT: improvement of monitoring methods. ^ 25 cl, 5 ex, 3 tbl, 4 dwg