1. 요 약
상변환 물질 (PCM)을 함유하는 스타이렌 입자를 미니에멀젼 중합을 이용하여 제조하였고, 여러 제조 조건에 따라 제조된 고분자 라텍스는 평균 입자크기, 입자 분포 그리고 잠열 저장특성에 관하여 조사하였다. 제조된 PCM 캡슐의 형태와 입자특성은 각각 SEM과 CHDF에 의하여 측정하였다. 분석
conductivity measurements. The results show that the Au parti- cles are well-protected by the dithiol linker molecules and do not fuse into larger un- ited. The thin film material obtained clearly exhibits nonmetallic properties(i.e., electro -hopping conductivity and optical constants very different from those of metals).
Experimental
Preparation of gold seed solution
of the overall purification stayed in the 70-80%.
PHB Synthesis Pathway
Alcaligenes eutrophus PHB in normal circumstances, do not generate a nitrogen-deficient conditions in the medium inside the cell to survive by creating PHB is stored. Alcaligenes eutrophus Glucose consumption is common inside the cells, energizing them for the part of the process that undergo produces 2 ATP. Glucose is t
A partially ionized gas created by application of an electric field. Positive ion/electron pairs are created by ionization reactions, maintaining overall charge neutral.
Commonly, radio-frequency (RF) at 13.56 MHz is used to create the glow discharge.
Typical pressures are between 1 mtorr and 5 torr.
Effective method for modifying surface property of a material little effect on bulk pro
문제가 되는 반대쪽 전극의 손상이나 파티클 발생 등의 문제 해결 가능
1015 ions/cm2 이 300~ 700 eV 의 energy 로 표면과 충돌할 때 substrate 표면파괴 및 화학적인 오염이 심각함
residual film 형성
gas phase particle deposition
metallic impurities
불순물 제거 방법 : 습식 산화 제거에 의한 산소 또는 수소 plasma 처리