Development of nanogel based materials using neutron scattering

2015 Fiscal Year Final Research Report

• Project/Area Number: 25790087
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: SEKINE Yurina 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究員 (00636912)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 中性子小角散乱 / ナノゲル / 高分子

Outline of Final Research Achievements

The detailed structure of a nanogel formed by self-association of hydrophobic groups-bearing polysaccharides was determined by contrast variation small-angle neutron scattering (CV-SANS). We established a structural analysis method of nanometer-sized particulate hydrogels using CV-SANS and revealed the fine structure of the nanogels at nanoscopical level. In cholesterol-bearing pullulan nanogels, the cross-linking points are formed by aggregation of trimer cholesterol molecules, and the spatially inhomogeneous distribution of the cross-linking points in the nanogel can be represented by the mass fractal dimension of 2.6. We also successfully determined the detailed structure of several kinds of nanogels by using CV-SANS.

Free Research Field

中性子科学、高分子科学