http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Poly(D-glutamic acid)와 Poly(acryl amide)간의 수소결합형 고분자 복합체의 미세구조
조종수,강성우,한민현,Jo, Jong-Su,Gang, Seong-U,Han, Min-Hyeon 한국섬유공학회 1987 한국섬유공학회지 Vol.24 No.2
Polymer complexes via hydrogen bonding were isloated as precipitates in fiber forms during mixing of aqueous solution of poly (D-glutamic acid) (PGA) and Poly(acryl amide) (PAAM). The structure of the fibrous preciptitates was observed by the scanning electron micrograh (SEM) and by the polarized micrograph.
김사익,조종수,윤승락,노정관,나종범,김동귀,Kim, Sa-Ick,Jo, Jong-Su,Yoon, Seung-Lak,Roh, Jeong-Kwan,Ra, Jong-Bum,Kim, Dong-Kooi 한국가구학회 2006 한국가구학회지 Vol.17 No.1
This study attempted to visually inspect eight hundred wood crafts collected from various countries. These include sculputures, toys, jewl cases, kitchen wares, candle holder and wooden vases, stationery, sport outfits and etc. The most impressive wood is Myrtlewood, a broadleaf evergreen which grows along the coastline of southern Oregon and northern Califonia. Myrtlewood possesses a wide variety of grove patterns. This unique wood varies in color from a deep, rich brown to silver grey, red and every yellow. Myrtlewood is being recognized as being one of the most beautiful hardwoods in the world.
나재운,정영일,조종수,Na, Jae Un,Jeong, Yeong Il,Jo, Jong Su Korean Chemical Society 2000 Bulletin of the Korean Chemical Society Vol.21 No.4
Multiblock copolymers consisting of poly( g-benzyl L-glutamate) (PBLG) as the hydrophobic part and poly(ethylene oxide) (PEO) as the hydrophilic part (GEG) were synthesized and characterized. GEG polymeric micelles were prepared by the dialysis technique. Particle size distributions based on intensity,volume, and number-average were 22.6 $\pm$ 11.9 nm, 23.5 $\pm$ 4.6 nm, and 23.7 $\pm$ 37 nm, respectively. It was observed that par-ticle size and size distribution of GEG polymeric micelles changed significantly with the choice of initial sol-vent. Transmission electron micrographs (TEM) showed the polymeric micelles to be spherically shaped, with sizes ranging from 20 nm to 40 nm in diameter. Fluorescence spectroscopy measurements suggested that GEG block copolymers wereassociated in water to form polymeric micelles, and the critical micelle concentrations (CMC) value of the block copolymers was 0.0094 g/L. Further evidenceof micelle formation of GEG block copolymers and limited mobility of the PBLG chain in the core ohe micelle was obtained with 1 H NMR in D2O.
생체적합성과 생분해성을 갖는 Polypeptide Copolymer의 합성과 물성에 관한 연구. (1) 폴리에틸렌 글리콜을 그라프트시킨 폴리펩티드의 합성
강인규,권대룡,조종수,성용길,Gang, In Gyu,Gwon, Dae Ryong,Jo, Jong Su,Sung, Yong Kiel 대한화학회 1990 대한화학회지 Vol.34 No.2
한쪽 말단에 히드록시 혹은 양말단에 아미노기를 갖는 폴리에틸렌글리콜(PEG)을 이용한 에스테르 교환 혹은 아미노 치환반응을 행하여 (PEG) grafted poly γ-benzyl L-glutamate (PBLG)를 합성했다. 이들의 점도 특성은 진한 용액내에서는 농도 감소에 따라 점도가 감소하다가 어느 이상 묽어지게 되면, 농도 감소에 따라 점도는 다시 증가했다. PEG를 함유하는 폴리펩티드 중합체의 젖음성은 동종 중합체보다도 향상 됐고, 이들 중합체 필름을 아미노에탄올과 표면반응시킨 결과, 물의 접촉각이 대폭적으로 작아져 표면에 수화겔이 형성됨을 알 수 있었다. Polyethylene glycol (PEG) grafted poly γ-benzyl L-glutamate (PBLG) were prepared from esterification or substitution reaction of PBLG with PEG having hydroxyl group at one end or primary amino groups at both ends. The viscosity of these polymer solution was decreased with decrease of polymer concentration. But in more dilute solution the viscosity was increased with decrease of polymer concentration. PEG-grafted PBLG polymers showed smaller water contact angles than PBLG homopolymer, and the water contact angles of the surface of PEG-grafted PBLG polymers were largely dropped by reacting with aminoethanol, resulting in hydrogel surfaces.