Penta (2, 3-dibromopropoxy) allyloxycyclotriphosphazene, N3P3OCH2CH=CH2(OCH2CHBrCH2Br)5 was synthesized and identified by IR, mass spectroscopy and elemental analysis of C,H,N and halogen. This vinyl monomer could be grafted on cellulose by CeIV initiation without opening its aromatic phosphazene ring. After extraction of homopolymer, thermal behavior of grafted cellulose was studied and compared with that of pure cellulose by TGA and DSC analysis. Grafted cellulose showed two typical double peaks at 240 and 274$^{\circ}C$ in DSC curve, lowered the decomposition temperature, and increased the amount of char. It suggested that decomposition mechanism of grafted cellulose is different from that of pure cellulose, which leads to improvement in flame retardant property.

In this paper, four primary hands and total hand, suggested by HESC, of Korean summer suits for men had been judged by the experts in factories, so called by means of hand judgement. And the mechanical properties of those suits had been measured by KES measuring system, developed by kawabata. And then the regression eguation which hand value can be calculated from mechanical properties can be obtained from sensory properties and mechanical properties of these suits by means of a step wise block regression analysis. And hand and mechanical properties between Korean summer suits and Japanese had been inspected, and compared each other. The result obtained were as follow. 1) Correlation coefficient between experimental and the regressed hand values of Korean summer suits were higher than that of Japanese. The saturation of R with increasing terms of Xi suggests that the behind terms of after the saturation can be ignored.2) The order of contribution of each of the characteristic values to the hand value were as follow. a)Stiffness; shearing properties>bending properties>surface properties>tensile properties>compression properties>WT b) Crispness; surface properties>shearing properties>compression properties>tensile properties>bending properties>WT c)Fullness and softness; compression properties>tensile properties>WT>shearing properties>bending properties>surface properties d)Anti-drape stiffness; bending properties>surface properties>shearing properties>compressin properties>tensile properties>WT

In order to study the crystalline morphology and crystallization mechanism of PET annealed at low temperature, the amorphous PET film, quenched from the melt, was annealed at 90∼120$^{\circ}C$ with and without tension for various times. The properties of annealed PET film were measured by density gradient tube, polarizing microscope, infrared spectrometer, X-ray diffractometer and thermal analyzer. The following results were obtained; 1. The crystalline morphology of annealed PET at low temperature was not fringed micellar or bundle-like but spherulitic. 2. Crystallites became more perfect with the increase of annealing time. 3. The rate of crystallization was rapid and the dimensions of crystal growth became larger with the increase of annealing temperature. 4. Local crystallization via chain folding proceeded at low temperature.

A simple lattice mode was defined and analyzed for investigating the stress-strain behavior of plain woven fabrics stretched in the biased directions. The stress-strain curve can be divided into initial elastic and strain hardening regions. The stress-strain relationships for the two regions were calculated and discussed with experimental results. The strain at a certain stress, the maximum strain of initial elastic region and the modulus of strain hardening region were calculated, and the results were compared with expermental values.

To investigate the dimensional properties of 1$\times$1 rib knitted fabrics, cotton and polyester/cotton knitted fabrics with various loop lengths were prepared. Course density, rib density, stitch density, thickness and weight per unit area of sample fabrics were measured at dry and wet relaxed states, and the values of K1-4 and bulkiness, were calculated and inspected. As the results of the study, it was noted that cotton knitted fabrics were reached to fully-relaxed state by wet-relaxation treatment, at 7$0^{\circ}C$ for 24hrs with the K1 valus of 68.4 at that state, while polyester/cotton knitted fabrics to fully-relaxed state by tumble drying at 7$0^{\circ}C$ for 2hrs after wet-relaxation treatment at 7$0^{\circ}C$ for 24hrs with K1 valus of 65.5. Under fully-relaxed state, K4, the ratio of course density and rib density became almost constant; K4=1.5 for cotton knitted fabrics and 1.3 for polyester/cotton knitted fabrics. Relaxation treatment increases thickness and bulkiness. Those of cotton knitted fabrics increase more than those of polyester/cotton knitted fabrics. Under fully-relaxed state, area shrinkage ratio of cotton knitted fabrics was larger than that of polyester/cotton knitted fabrics; cotton knitted fabrics reached about 25% and polyester/cotton knitted fabrics about 15%.

고분자의 표면 장력과 용해도 파라미터 및 임계표면 장력과 용해도 파라미터의 분산 성분과의 관계가 개정된 Hildebrand-Scott식을 사용하는 것에 의하여 결정되었다. 여러 가지 문헌치와 계산치를 사용하여 최소 자승법으로 얻어낸 관계 계수는 각각 2.04와 1.85였다. 비극성인 폴리에틸렌, 강한 극성인 나일론 6 및 약한 극성인 PET가 모형 고분자로 사용되었다. 상이한 결정화도를 갖는 고분자 막이 제조되고 이들 막의 표면 장력이 그 분산성분과 극성성분과 함께 접촉각측정 결과로부터 Kaeble법에 의하여 결정되었다. 또한 이들 고분자 막의 용해도 파라미터의 성분치가 개정된 Hildebrand-Scott 식으로부터 계산되었다. 아울러 결정화도가 용해도 파라미터에 미치는 영향이 고분자 막의 결정 구조 및 입체 형태의 변화와 관련시켜 검토되었다.

Styrene and vinyl acetate were copolymerized with maleic anhydride respectively by solution polymerization and each polymer was reacted with -hydroxyethylcinnamate and -hydroxybutylcinnamate respectively in the methyl ethyl ketone at 80℃. The photosensitive characteristics of the four kinds of polymer were investigated by using yield of residual film and IR spectra. Benzophenone, Michler's ketone, 5-nitroacenaphthene, and 2-nitrofluorene were used as a sensitizer. The best yield of residual film was obtained when the benzophenone, Michler's ketone, 5-nitroacenaphthene, and 2-nitrofluorene were added to the resin by weight percentage of 8, 8, 5, and 8 respectively. Among the four sensitizers, 5-nitroacenaphthene had the best sensitivity for the water soluble photosensitive polymers.