고분자 겔
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고분자 겔
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Download : 고분자 겔.ppt( 39 )
고분자 겔
Stimuli-sensitive polymer
Environmental Stimuli
pH, temperature, electrical field, ionic strength, salt type, solvent, light
Response
Change in shape, surface ch-aracteristics, solubility, molecular self-assembly, sol-to-gel transition
Stimuli-sensitive polymer의 속성
Stimuli-sensitive property
Behavior : intra or intermolecular interaction of polymer chain
Driving forces : van der Waals interaction, hydr-ophobic interaction, hydrogen bonding, electrostatic interaction
Stimuli-sensitive hydrogel
Crosslinking
Physical : temperature, ionic strength, solvent, UV/VIS light, electric field, magnetic field
Chemical : pH, specific ions, chemical species
Biological : enzyme, glucose, antigen, other biomolecules
Thermosensitive polymer
Poly(N-isopropyl acrylamide)
LCST : 32℃
Hydr-ophilic : acrylic acid, N,N-diethylaminoethyl methacrylate, acrylamide - LCST 증가
Hydr-ophobic : butyl methacrylate LCST 감소
Poloxamer : LCST 10~100℃
PLA or PLGA-PEO block or graft copolymer :…(省略)
고분자 겔 , 고분자 겔공학기술레포트 , 고분자 겔
레포트/공학기술
고분자 겔
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다.