METHODS OF CONTROLLING MOLECULAR WEIGHT DISTRIBUTION OF POLYMERS AND COMPOSITIONS THEREOF

• Main Author: ALLEN SCOTT D
• Format: Patent
• Language: English; Korean
• Published: 09.02.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

촉매, 공촉매 및/또는 사슬 이동제는 부가중합 반응의 개시 이후의 시점에서 부가되어, 원래 반응 혼합물 내에 성분들 모두를 가진 경우에 비해 넓어진 분자량 분포를 가진 폴리머 생성물을 생산한다. 촉매, 공촉매 또는 사슬 이동제는 반응에 불연속적으로 혹은 연속적으로 부가되어 이중 모드, 3중 모드, 또는 그 외 넓어진 분자량 분포를 가진 생성물을 생산할 수 있다 A catalyst, co-catalyst, and/or chain transfer agent is added at a time after initiation of an addition polymerization reaction to produce a polymer product with a widened molecular weight distribution relative to having all of the components in the original reaction mixture. The catalyst, co-catalyst, or chain transfer agent may be added discretely or continuously to the reaction to produce a product with a bimodal, trimodal, or other broadened molecular weight distribution.