Abstract While methods to control dispersity of a molecular weight distribution are slowly emerging, the question remains how any arbitrary distribution, and more precisely distribution shape, can be created in a polymer sample. Ultimately, if the aim is to create any shape form, then this can only be achieved by blending individual polymers. In here, we describe an approach to first generate molecular weight distributions of any shape with selectable average molecular weight and dispersity. With such software tool at hand, we discuss the influences of shape and dispersity on the residual structure. Molecular weight distributions are often less intuitive than anticipated, and effects can be complex. In the next step we show how these generated distributions are automatically fitted to interpolated RAFT polymer distributions, providing a detailed instruction which polymers need to be blended in which quantity in order to obtain the desired additive distribution. The software tools required for this task are demonstrated and discussed, and are made available to the reader for download.

中文翻译：

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设计具有可选平均分子量和分散度的任意形状的分子量分布

摘要 虽然控制分子量分布分散性的方法正在慢慢出现，但问题仍然是如何在聚合物样品中创建任意分布，更精确的分布形状。最终，如果目标是创造任何形状，那么这只能通过混合单独的聚合物来实现。在这里，我们描述了一种首先生成具有可选平均分子量和分散性的任何形状的分子量分布的方法。有了这样的软件工具，我们讨论了形状和分散性对残差结构的影响。分子量分布通常不如预期直观，而且效果可能很复杂。在下一步中，我们将展示这些生成的分布如何自动拟合到内插的 RAFT 聚合物分布，提供详细说明哪些聚合物需要以何种量混合以获得所需的添加剂分布。此任务所需的软件工具已得到演示和讨论，可供读者下载。