TY - JOUR T1 - Improved Color Yield on Polyamide 66 with a High Molecular Weight Acid Dye: Optimization by Response Surface Methodology JO - Journal of the Brazilian Chemical Society A1 - Wang, Gang A1 - Zhang, Yuqing A1 - Niu, Xinxu A1 - Kong, Ziyan A1 - Wang, Xiaochun A1 - Ma, Kejie A1 - Bao, Jianing A1 - Wang, Rui A1 - Zhang, Xiuqin SN - 0103-5053 UL - 10.21577/0103-5053.20250188 VL - 37 Y1 - 2026 PB - Brasil ER -