PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS

Shu-ning Li; Xin-lin Yang~() Wen-qiang Huang~() Key Laboratory of Functional Polymer Materials; the Ministry of Education; Institute of Polymer Chemistry; Nankai University; Tianjin 300071; China

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PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS

Updated：2021-06-21

- PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS
- PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS
- 高分子科学（英文版） 2007年第6期页码：555-563
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  This work was supported in part by the National Science Foundation of China（No.20504015）();the Opening Research Fund from the State Key Laboratory of Polymer Chemistry and Physics,Chinese Academy of Sciences（No.200613）.()
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Shu-ning Li, Xin-lin Yang~() Wen-qiang Huang~() Key Laboratory of Functional Polymer Materials, the Ministry of Education, 等. PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS[J]. 高分子科学（英文版）, 2007,(6):555-563.

PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS[J]. 2007,(6):555-563.
Shu-ning Li, Xin-lin Yang~() Wen-qiang Huang~() Key Laboratory of Functional Polymer Materials, the Ministry of Education, 等. PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS[J]. 高分子科学（英文版）, 2007,(6):555-563. DOI：

PREPARATION OF POLYMER MICROSPHERES WITH PYRIDYL GROUP AND THEIR STABILIZED GOLD METALLIC COLLOIDS[J]. 2007,(6):555-563. DOI：

摘要

<正>Narrow disperse poly（ethyleneglycol dimethacrylate-co-4-vinylpyridine）（poly（EGDMA-co-4-VPy））microspheres were prepared by distillation-precipitation copolymerization of ethyleneglycol dimethacrylate（EGDMA）and 4-vinylpyridine （4-VPy）with 2,2’-azobisisobutyronitrile（AIBN）as initiator in neat acetonitrile.The polymer microspheres containing pyridyl group were then utilized as stabilizer for gold metallic colloids with the diameter around 7 nm,which were prepared by the in situ reduction of gold chloride trihydrate with sodium borohydride through the coordination of the pyridyl group on the gel layer and surface of the microsphere with the gold metallic nano-particles.The catalytic properties of the pyridyl- functionalized microsphere-stabilized gold metallic colloids and the behavior of the stabilized-catalyst for the recycling were investigated with reduction of 4-nitrophenol to 4-aminophenol as a model reaction.

Abstract

Narrow disperse poly（ethyleneglycol dimethacrylate-co-4-vinylpyridine）（poly（EGDMA-co-4-VPy））microspheres were prepared by distillation-precipitation copolymerization of ethyleneglycol dimethacrylate（EGDMA）and 4-vinylpyridine （4-VPy）with 2,2’-azobisisobutyronitrile（AIBN）as initiator in neat acetonitrile.The polymer microspheres containing pyridyl group were then utilized as stabilizer for gold metallic colloids with the diameter around 7 nm,which were prepared by the in situ reduction of gold chloride trihydrate with sodium borohydride through the coordination of the pyridyl group on the gel layer and surface of the microsphere with the gold metallic nano-particles.The catalytic properties of the pyridyl- functionalized microsphere-stabilized gold metallic colloids and the behavior of the stabilized-catalyst for the recycling were investigated with reduction of 4-nitrophenol to 4-aminophenol as a model reaction.

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