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Poly-β(1,4)-D-glucosamine-g-polyethyleneoxide의 합성 및 물성에 관한 연구
주상명,장광태,성용길 동국대학교 자연과학연구원 1995 자연과학연구 논문집 Vol.15 No.-
Poly-β(1,4)-D-glucosamine derived from poly-β(1,4)-N-acetyl-D-glucosamine by treating with alkaline solution has been reported to be a promising polymer not only in the chemical field but also in biomedical area. Poly-β(1,4)-D-glucosamine used in this experiment was seen about 93 percentage of degree of deacetylation by heterogeneous alkaline soultion. Poly-β(1,4)-D-glucosamine-g-polyethyleneoxide was synthesized by homogeneous method. Various molecular weights of polyethyleneoxide as a hydrophilic and flexible spacer were introduced to Poly-β(1,4)-D-glucosamine to produce Poly-β(1,4)-D-glucosamine-g-polyethyleneoxide. The synthesized copolymers are characterized by FT-IR, elemental analysis, thermogravimetric analyzer, and differential scanning calorimetry.
김종경,류운형,주상명,이환 한국포장학회 2005 한국포장학회지 Vol.11 No.1
For both economic and ecological reasons corrugated box manufacturers are seeking to produce acceptably strong boxes while using more recycled paper. This study was to develop hydrophilic coating agents in order to improve overall physical properties of recycled corrugated fiberboard liners. Two coating agents were developed and applied to ``S`` corrugating medium. The results showed that compression strength of new liners, named ``S-A`` and ``S-B``, were increased significantly both standard humidity and high humidity environment and it was as much as ``SK`` liner. New developed liners were also economically advantageous since new liners were estimated about one hundred fifty dollars per ton cheaper than SK liner. The study indicated that further work is needed on the coating technology and machine development.