Characterization, crystallization kinetics and melting behavior of poly(ethylene succinate) copolyester containing 5mol% trimethylene succinate

Chen, Ming; Chang, Wen-Liang; Lu, Hsin-Ying; Chen, Chi He; Peng, Jyun-Siang; Tsai, Chia‐Jung

doi:10.1016/j.polymer.2007.06.060

Cited by 31 publications

(40 citation statements)

References 21 publications

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“…The mobility hindrance for the 8.0 wt % PLA/α‐cellulose suppressed the occurrence of heterogeneous nucleation and resulted in a reduced n value. An additional reason is that the polymer film thickness in the aluminum pan during the DSC measurement was ∼100 μm 27. Therefore, the larger dimension of the spherulites may have caused the lower n value during the last stage of isothermal crystallization.…”

Section: Resultsmentioning

confidence: 99%

Crystallization behavior of α‐cellulose short‐fiber reinforced poly(lactic acid) composites

Kuo

Chen

et al. 2013

J of Applied Polymer Sci

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The isothermal crystallization behavior of a-cellulose short-fiber reinforced poly(lactic acid) composites (PLA/a-cellulose) was examined using a differential scanning calorimeter and a petrographic microscope. Incorporating a natural micro-sized cellulose filler increased the spherulite growth rate of the PLA from 3.35 lm/min for neat PLA at 105 C to a maximum of 5.52 lm/min for the 4 wt % PLA/a-cellulose composite at 105 C. In addition, the inclusion of a-cellulose significantly increased the crystallinities of the PLA/a-cellulose composites. The crystallinities for the PLA/a-cellulose composites that crystallized at 125 C were 48-58%, higher than that of the neat PLA for $13.5-37.2%. The Avrami exponent n values for the neat and PLA/a-cellulose composites ranged from 2.50 to 2.81 and from 2.45 to 3.44, respectively, and the crystallization rates K of the PLA/a-cellulose composites were higher than those of the neat PLA. The activation energies of crystallization for the PLA/a-cellulose composites were higher than that of the neat PLA. The inclusion of a-cellulose imparted more nucleating sites to the PLA polymer. Therefore, it was necessary to release additional energy and initiate molecular deposition.

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Section: Resultsmentioning

confidence: 99%

Crystallization behavior of α‐cellulose short‐fiber reinforced poly(lactic acid) composites

Kuo

Chen

et al. 2013

J of Applied Polymer Sci

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“…Among the diol, the molar component of DEG ware predetermined as 0%, 10%, 20%, 30% and 40% respectively. TTP was used as a catalyst with 0.1 mol% based on the amount of diacid, and two drops of PPA as stablizer in second step esterification reaction in the melt refering to [24] , the temperatures of 2 steps were 170 and 230, respectively. The Mn of the all copolyesters are around 7.0 Â 10 4 .…”

Section: Syntheses Of Pbs and Pbdegsmentioning

confidence: 99%

“…At the same time, the high crstallinity of PBS make it too brittle, so improvement of its impact strength is growing importance and a lot of articles were published in recent years on its copolymers [22][23][24][25] . Compare to other polymerization techniques, direct polycondensation technique is now in demand for synthesizing aliphatic polyesters with less chemical engineering process and more competitive cost.…”

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confidence: 99%

Synthesize and Crystallization Kinetics of Biodegradable Aliphatic Poly(Butylene Succinate-Co-Diethylene Glycol)

Guo

Qin

et al. 2009

Polymer-Plastics Technology and Engineering

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Biodegradable aliphatic poly(butylene succinate-co-diethylene succinate) (PBDEGS) were synthesized from succinic acid and diethylene glycol through a two step polycondensation with titanium tetraisoproxide (TTP) as catalyzer and polyphosphate (PPA) as the stablilizer at high temperature. The differential scanning calorimeter (DSC) was used to investigate the melting behavior, crystallization behavior and non-isothermal crystallization kinetics of this copolyester. The melting behavior showed that the melting temperature of the copolyester decreased gradually with increaseing of diethylene glycol in the copolyester. The crystallization mechanism of PBDEGSs were analyzed with the Avrami equation. The result showed that the DEG chains affected the crystallization mechanism of PBS and decreased overall crystallization rate in some extent. The contrastive method of Mo analysis showed similar rasult. At the same time, because of the flexible ether bond existed in the DEG molecules, the crystallization activation energy of PBDEGSs is obviously lower than that of PBS.

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“…The abilities of particle fillers to act as nucleating agents and modify the crystalline matrix of polymers have significant effects on the crystalline structure, crystalline phase and crystallization process of polymers [16–19]. The different size and size distribution fillers can lead to the different nucleation effects of nucleating agents and the modification of crystalline matrix of polymers [20–24].…”

Section: Introductionmentioning

confidence: 99%

Study on crystal process and isothermal crystallization kinetics of UHMWPE/CA‐MMT composites

Liu¹,

Qiu²,

Liu³

et al. 2012

Polymer Composites

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Changes in the crystal morphology, crystallinity, and the melting process of thermoplastics resulted in significant changes in the processability and mechanical behavior of composites. In our former study, we prepared a novel antibacterial UHMWPE/CA‐MMT composite. In this study, the crystal process and crystallization kinetics of pure UHMWPE, UHMWPE/MMT, UHMWPE/CA, and UHMWPE/CA‐MMT were characterized by differential scanning calorimeter (DSC). The results showed that the chlorhexidine acetate (CA) and montmorillonite (MMT) could cause strong heterogeneous nucleation. The results of crystallization kinetics indicated that the addition of CA could decrease the crystallization rate constant K value and widen the range of the crystal growth temperature. The reological behaviors of four samples were carried out by a physical MCR301 rheometer. The results showed that the CA could bring down the complex viscosity of composites, thus affecting the crystal process or crystallization kinetics. POLYM. COMPOS., 33:1987–1992, 2012. © 2012 Society of Plastics Engineers

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Characterization, crystallization kinetics and melting behavior of poly(ethylene succinate) copolyester containing 5mol% trimethylene succinate

Cited by 31 publications

References 21 publications

Crystallization behavior of α‐cellulose short‐fiber reinforced poly(lactic acid) composites

Crystallization behavior of α‐cellulose short‐fiber reinforced poly(lactic acid) composites

Synthesize and Crystallization Kinetics of Biodegradable Aliphatic Poly(Butylene Succinate-Co-Diethylene Glycol)

Study on crystal process and isothermal crystallization kinetics of UHMWPE/CA‐MMT composites

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