机器学习框架用于描述块共聚合物薄膜中的处理结构关系
Bradley Lamb1, Saroj Upreti1, Yunfei Wang1
1School of Polymer Science and Engineering, University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406, United States.
Macromolecules
|March 2, 2026
概括
一个新的机器学习框架使用GISAXS和AFM数据分析块共聚合物 (BCP) 薄膜形态. 这种方法加快了对各种应用的BCP材料的理解和优化.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 数据科学数据科学数据科学
背景情况:
- 块共聚合物 (BCP) 形态决定了材料的特性和应用.
- 描述BCP薄膜对于材料开发至关重要.
- 现有的方法可能耗时,缺乏高吞吐量能力.
研究的目的:
- 开发一种支持机器学习 (ML) 的高通量框架,用于BCP薄膜形态分析.
- 为了整合放牧发生率小角度X射线散射 (GISAXS) 和原子力显微镜 (AFM) 数据.
- 为了能够有效地探索和优化BCP处理参数.
主要方法:
- 训练了一个卷积神经网络 (CNN),以97%的准确度分类AFM图像.
- 从机关分类的AFM图像中提取2D粒度测量的高通量提取.
- 经过训练,ML模型可以根据处理参数 (溶剂比率,添加剂类型/比率) 预测域方向.
- 为了模型的可解释性,使用了夏普利添加式解释 (SHAP).
主要成果:
- 基于GISAXS的房地产预测显示出强的表现 (R2>0.75).
- 由于局部测量,基于AFM的财产预测不太准确 (R2 < 0.60).
- SHAP分析确定添加剂比为对形态预测最有影响的参数.
- 该框架成功地将处理参数与BCP形态相关联.
结论:
- 开发的ML框架加速了BCP薄膜形态的表征.
- 可解释性分析为结构与财产关系提供了关键的见解.
- 这种方法通过了解参数的重要性来促进BCP材料的优化.
- 该研究为探索和优化BCP形态在广泛的处理环境中提供了一条途径.
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