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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 손대원
- 발행연도
- 2017
- 저작권
- 한양대학교 논문은 저작권에 의해 보호받습니다.
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Poly(N-isopropylacrylamide) (PNIPAM) particles containing surface modified
halloysite nanotubes (HNTs) which have 500 - 1000 nm length and 25-50 nm inner
diameter are proposed. HNTs were purified first using freeze-drying method to avoid
aggregation which may have potential of undesirable experimental results. 3-
methacryloxypropyl trimethoxysilane (MPTMS) was used as a linker between HNTs
and PNIPAM because MPTMS can be chemically modified on the surface of HNTs and
also used as a co-monomer of PNIPAM synthesis, resulted from the trimethoxysilane
groups and vinyl groups. These organic/inorganic hybrids have size of 1.5 um length
and have shape of nanotube but properties of PNIPAM, giving inner space of nanotubes
as a container of materials and outer polymer showing temperature responsive property.
The volume of HNT/PNIPAM particles can be changed by controlling temperature at
26 ºC, resulting in improved controlled-release characteristics compared to pure HNTs
and PNIPAM themselves. This novel temperature-responsive microgel is characterized
by means of scanning electron microscopy, transmission electron microscopy, dynamic
light scattering, N2 gas physisorption, and FT-IR.
halloysite nanotubes (HNTs) which have 500 - 1000 nm length and 25-50 nm inner
diameter are proposed. HNTs were purified first using freeze-drying method to avoid
aggregation which may have potential of undesirable experimental results. 3-
methacryloxypropyl trimethoxysilane (MPTMS) was used as a linker between HNTs
and PNIPAM because MPTMS can be chemically modified on the surface of HNTs and
also used as a co-monomer of PNIPAM synthesis, resulted from the trimethoxysilane
groups and vinyl groups. These organic/inorganic hybrids have size of 1.5 um length
and have shape of nanotube but properties of PNIPAM, giving inner space of nanotubes
as a container of materials and outer polymer showing temperature responsive property.
The volume of HNT/PNIPAM particles can be changed by controlling temperature at
26 ºC, resulting in improved controlled-release characteristics compared to pure HNTs
and PNIPAM themselves. This novel temperature-responsive microgel is characterized
by means of scanning electron microscopy, transmission electron microscopy, dynamic
light scattering, N2 gas physisorption, and FT-IR.
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