有鑑於共同作者之跨學科研究結果僅呈現共同作者的學科分佈情形，未探討哪些學科之研究人員傾向一起發表文獻。本研究目的在以10種高分子學期刊為研究對象，分析1979年、1989年、1999年及2009年之共同作者學科分佈及學科組合情形。研究結果確認學科組合方式能提供更詳細之跨學科合作資訊，顯示高分子學合著論文的作者機構分佈於38個學科，但高分子學機構的研究人員僅與22個其他學科機構的研究人員共同發表論文，而高達189種的學科組合中，僅23.81%的學科組合包含來自高分子學機構的研究人員，反映高分子學是跨學科色彩顯明的研究領域。

The interdisciplinary research on co-authorship has primarily focused on the distribution of disciplines, rarely taking into account specific disciplinary combinations of co-authorship. To address this research gap, this paper conducts a case study of publications related to the field of polymer science, specifically articles from 10 journals published in 1979, 1989, 1999, and 2009, to analyze the disciplinary distribution and disciplinary combinations of the field. The results confirm that the analysis of disciplinary combinations reveals more detailed information of interdisciplinary collaboration than what disciplinary distribution has provided. Among 38 disciplines contributing to research in polymer science, researchers of polymer science only collaborate with researchers across 22 disciplines. In addition, only 23.81% of 189 types of disciplinary combinations involve authors affiliated with institutes of polymer science, indicating that polymer science is a strong interdisciplinary field.