| 摘要 |
<p>The dissolution of polymeric drag reducing agents (DRAs) in flowing hydrocarbon fluids is improved by incorporating branching into the polymer DRAs. A branched polymer of the same molecular weight will have a smaller overall size because of its reduced radius of gyration (Rg), and thus dissolve more readily. In one non-limiting embodiment, the polymer is a poly(alpha-olefin) and the branches are long-chain branches (Y-branching) and/or induced or H-branching, whereby the induced branch length may have an average chain length of at least 4-8 carbon atoms.</p> |
