• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.41-44
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• 2002

블렌딩이나 공중합체의 합성은 한가지 또는 모든 구성성분 고분자의 단점을 보완하면서 효과적인 물성 발현을 위해 연구되어 왔다. 특히 방향족 폴리에스테르계 고분자들 사이에서는 PET/PEN, PEN/PHN, PBT/PBN, 또는 PET/PBT 등의 공중합체가 보고되고 있다[1-3]. 한편, poly(trimethylene terephthalate)(PTT)는 최근 섬유로 방사되어 카펫, 의류 등으로 응용된 이후 PTT를 주성분으로 하는 bicomponent 멜트블로운 부직포[4], 염색[5] 등의 연구가 활발히 이루어지고 있다. (중략)

• Journal of the Korean Magnetic Resonance Society
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• v.10 no.1
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• pp.38-45
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• 2006

The NMR and MS techniques were applied to identification and quantitative analysis of oligomers in a commercialized poly (trimethylene terephthalate). Oligomers in a commercialized poly (trimethylene terephthalate) were extracted via a dissolving and reprecipitation method. Analysis of the components of the extract using NMR and MS revealed that it contained mainly cyclic oligomers with degrees of polymerization of 2, 4 and 5 (dimer, tetramer and pentamer). Trimer and cyclic oligomers with degrees of polymerization of more than 6 were not found in the extract in the present study. Quantitative analysis of dimer was performed by NMR spectroscopy.

• Fashion & Textile Research Journal
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• v.5 no.1
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• pp.53-58
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• 2003

The stretch fabrics were made by the use of PTT[Poly(trimethylene terephthalate)] fibers and changes in their physical properties were analysed. Tenacity and elongation of D-1(PTT DTY) yarn were 3.32 g/d and 50.4%, respectively, while these of D-2(PTT+CDP DTY) yarn were 2.46 g/d and 32.1%, respectively. The tenacity of PTT-1 and PET-1 fabrics was similar, but the elongation of PTT-1 and PET-1 fabrics was 75% and 44%, respectively. Thus, the elongation of PTT-1 fabric was two times higher than those of PET-1 fabric. In addition, the elastic recovery at 20% elongation of PTT-1, PTT-2 and PET-1 fabric was 85.0%, 80.5% and 60.0%, respectively, indicating that so PTT-1 fabric showed better elastic recovery. The light, wash, and abrasion fastness of PTT-1 and PTT-2 fabrics were above Grade 3, Grade 4-5, and Grade 4-5, respectively. Therefore, there was little effect of substance on the fastness.

• Proceedings of the Korean Fiber Society Conference
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• 2001.04b
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• pp.111-114
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• 2001

• Clean Technology
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• v.13 no.3
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• pp.173-179
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• 2007

In this study the amount of equilibrium sorption of C.I. Disperse Yellow 54 dye in the polymeric textiles such as PTT (poly(trimethylene terephthalate)) and PET (poly(ethylene terephthalate)) textiles was measured in the presence of supercritical carbon dioxide at different temperatures, pressures, and time. The amount of dye sorption increased with temperature and pressure in both PTT and PET textiles, but the increasing rate decreased with pressure. The PTT textile has much larger dye sorption than PET textile. The increasing rate of dye sorption decreased with time at same temperature and pressure for both PTT and PET textiles.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.363-366
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• 2002

Poly(trimethylene terephthalate)(이하 PTT)는 1941년 Caligo Printing Ink 사의 Whinfield와 Dickson에 의해 PET와 함께 처음으로 중합방법이 보고[1]되었으나, 원료인 1,3-propanediol의 제조가격이 너무 높아 지난 60년간 상업화 및 학문적 연구가 거의 이루어지지 않았다. 최근 미국의 Shell사와 독일의 Degussa(현재 미국의 duPont)에 의해 1,3-propanediol이 대량생산되면서 PTT섬유의 상업적 생산에 점점 관심이 집중되고 있다. (중략)

• Fibers and Polymers
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• v.5 no.3
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• pp.245-251
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• 2004

Poly(trimethylene terephthalate-co-trimethylene 2,6-naphthalate)s (P(TT-co-TN)s) with various copolymer composition were synthesized, and their chain structure, thermal property and crystalline structure were investigated by using $^1$H-NMR spectroscopy, differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD), respectively. It was found from sequence analysis that all the P(TT-co-TN) copolymers synthesized have a statistical random distribution of TT and TN units. It was also observed from DSC thermograms that the glass transition temperature increases linearly with increasing the TN comonomer content, whereas the melting temperature of copolymer decreases with increasing the corresponding comonomer content in respective PTT- and PTN-based copolymer, showing pseudo-eutectic melting behavior. All the samples melt-crystallized isothermally except for P(TT-co-66 mol % TN) exhibit multiple melting endotherms and clear X-ray diffraction patterns. The multiple melting behavior originates from the dual lamellar population and/or the melting-recrystallization-remelting. The X-ray diffraction patterns are largely divided into two classes depending on the copolymer composition, i.e., PTT and PTN $\beta$-form diffraction patterns, without exhibiting cocrystallization.

• Proceedings of the Korean Fiber Society Conference
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• 2003.04a
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• pp.68-71
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• 2003

Poly(trimethylene terephthalate)는 1941년 Caligo printing Ink 사의 Whinfield와 Dickson에 의해 PET와 함께 처음으로 그 중합방법이 보고 된 이래, 주원료인 1,3-propanediol의 생산가격이 너무 높아 지난 60년간 상업화 및 학문적 연구가 거의 이루어져 있지 않다. 미국의 Shell사와 독일의 Degussa(미국의 Dupont)에 의해 1,3-propanediol이 대량 생산되면서[1], PTT 섬유의 상업적 생산에 점점 관심이 집중되고 있다. 국내에서도 S사와 Shell의 공동연구에 의해 제품이 생산되는 둥 많은 연구가 진행중에 있기는 하지만, Poly(ethylene terephthalate)의 연구에 비한다면 아직 걸음마 단계의 기초 자료로 제품이 생산되고 있는 실정이다. (중략)

• Polymer(Korea)
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• v.28 no.1
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• pp.67-76
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• 2004

The effects of drawing temperature and draw down ratio on thermal properties, crystallinity and orientation of poly(trimethylene terephthalate)/poly(ethylene terephthalate) (PTT/PET) 100/0 ,90/10, and 80/20 blends have been investigated. The crystallinity and glass transition temperature increased while cold crystallization temperature and cold enthalpy decreased due to the development of orientation and stress induced crystallization by the cord drawing. Introducing PET to PTT decreased the crystallinity of PTT. However, it enhanced the orientation of PTT/PET blends drawn at below the glass transition temperature of PET. This lead to the increase of tensile modulus and tensile strength of PTT/PET blends. The shrinkage increased with increasing orientation, which might be minimized by the development of crystalline morphology of PTT in the course of cold drawing.

• Proceedings of the Korean Fiber Society Conference
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• 2003.04a
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• pp.341-342
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• 2003

Poly(trimethylene 2,6-naphthalate)(PTN)은 dimethyl-2,6-naphthalene dicarboxylate(NDC)와 1,3-propanediol(PDO)로 합성된 polyester이다. 비록 PTN은 아직 상업화된 resin은 아니지만 Poly(trimethylene terephthalate)(PTT)와 비슷한 화학적 구조를 가지며 PTT 보다 높은 유리전이 온도(72$^{\circ}C$)를 나타내고 있으므로 다양한 분야에 응용될 수 있다. 특히 최근에 1,3-propanediol based polyester는 가스 차탄 특성이 우수하다는 것이 보고되었으며 PTN의 산소, 이산화탄소 등 가스 차단 특성은 poly(ethylene 2,6-naphthalete)(PEN)보다 우수한 것으로 보고되었다. (중략)