Poly(trimethylene terephthalate), Poly(trimethylene naphthalate) 및 PTT/PTN (50/50) 블렌드 필름의 방사광 SAXS 분석 = Synchrotron SAXS Analysis of Poly(trimethylene terephthalate), Poly(trimethylene naphthalate), and PTT/PTN (50/50) Blend Films

다국어 초록 (Multilingual Abstract)

Poly(trimethylene terephthalate) (PTT)/poly(trimethylene naphthalate) (PTN) (50/50, weight ratio) blend films (T5N5) with amorphous state were prepared by melt-pressing of solution blended powders at $260^{\circ}C$ for various times and quenching them in liquid nitrogen. Homo PTT and PTN films were also prepared by the same method. Small angle X-ray scattering (SAXS) measurements during the heating process were carried out using synchrotron X-ray source to investigate the changes in microcrystalline structure of the PTT, PTN and T5N5 films. From the electron density correlation functions obtained from SAXS patterns, long period (L), lamella thickness ($I_c$), and amorphous layer thickness ($I_a$) were calculated. Long periods of the amorphous films began to increase at around crystallization temperature of the samples. The increase in both $I_c\;and\;I_a$ attributed to the increase of L.L of PTN film is larger than that of PTT. L of T5N5 exhibited values between those of PTT and PTN film and it increased with heat treatment time at $260^{\circ}C$.

참고문헌 (Reference)

1 "Use of SAXS and Linear Correlation Functions for the Determination of the Crystallinity and Morphology of Semi-Crystalline Polymer. Application to Linear Polyethylene" 37 : 1715-1738, 1999

2 "Time-Resolved Small-Angle X-ray Scattering Studies on the Crystallization of Poly" 29 (29): 7034-7037, 1996

3 "The Structure of Poly" 545-552, 1979

4 "The Nature of Secondary Crystallization in Poly" 40 : 4615-4627, 1999

5 "The Crystal Structure of Poly" 419-426, 1979

6 "Synthesis and Characterization of Poly" 40 : 321-329, 2003

7 "Studies on the Transesterification of Poly" 42 : 288-295, 2005

8 "Small Angle X-ray Scattering" Academic Press 1982.

9 "Melting and Crystallization Behavior of Poly" 44 : 3259-2 3267, 2003

10 "Lamellar-Level Morphology Induced by Combined Crystallization and Liquid-Liquid Demixing in a Poly" 40 : 317-324, 2002

11 "In Situ Study of Structure Development During Continuous Hot-drawing of Poly Fibers by Simultaneous Synchrotron Small- and Wide-angle X-ray Scattering" 42 : 7161-7170, 2001

12 "Dynamic Study of Crystallization- and Melting-Induced Phase Separation in PEEK/PEKK Blends" 30 : 4544-4550, 1997

13 "Domain and Segmental Deformation Behavior of Thermoplastic Elastomers Using Synchrotron SAXS and FTIR Methods" 37 : 3233-3245, 1999

14 "Correct Determination of Crystal Lamellar Thickness in Semicrystalline Poly" 41 : 1791-1797, 2000