In situ polymerization of poly(styrene- alt -maleic anhydride)/organic montmorillonite nanocomposites and their ionomers as crystallization nucleating agents for poly(ethylene terephthalate)

Xing, Shili; Li, Rui; Si, Jing; Tang, Ping

doi:10.1016/j.jiec.2016.04.020

Cited by 18 publications

(3 citation statements)

References 48 publications

(57 reference statements)

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“…The additions of ACNTB and RP@ACNTB basically do not affect the melting temperature of PET fiber possibly owing to the very low content of filler; similar phenomena occur in PET powder systems with ACNTB and RP@ACNTB (Figure S8). However, they can decrease T cc values of PET fibers because ACNTB and RP@ACNTB can act as prealigned nucleation sites, , and then the crystallization rate of PET is accelerated by the addition of the filler, which also can be proved by the higher crystallization temperature of PET powders with ACNTB and RP@ACNTB during cooling (Figure S8). PET/0.8RP@ACNTB fiber shows lower T cc than PET/0.8ACNTB when the same amount of filler is applied, which is attributed to the good compatibility between RP@ACNTB and PET as indicated by the weak exothermic peak at 316 °C in the DSC curve of the PET powder with 20 wt % RP@ACNTB (Figure S7).…”

Section: Resultsmentioning

confidence: 99%

Reactive Polymer-Functionalized Aligned Multiwalled Carbon Nanotube Bundles-Induced Porous Poly(ethylene terephthalate) Fibers

Yuan

Wang

Chen

et al. 2019

Ind. Eng. Chem. Res.

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Porous poly(ethylene terephthalate) (PET) fibers were fabricated by the melt-spinning method. Here, reactive polymer-functionalized aligned multiwalled carbon nanotube bundles (RP@ACNTB) were introduced into a spinning system to create nanopores in PET fibers via the diffusion of gaseous products evolved from the decomposition of polymers. PET fibers with RP@ACNTB had outstanding mechanical property due to the CNT alignment and the good compatibility between PET and RP@ACNTB. As compared to PET fibers, PET fibers with 0.3–0.8 wt % RP@ACNTB displayed significantly increased tensile strength and improved thermal stability. Especially, the formation of a porous structure could markedly increase the water absorption of PET/RP@ACNTB fibers from 0.9% to 2.9–5.7%. When the same amount of fillers was applied, PET fibers with RP@ACNTB showed better water absorption and lower mechanical property than PET fibers with pristine ACNTB mainly because of the presence of pores in the PET matrix.

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Section: Resultsmentioning

confidence: 99%

Reactive Polymer-Functionalized Aligned Multiwalled Carbon Nanotube Bundles-Induced Porous Poly(ethylene terephthalate) Fibers

Yuan

Wang

Chen

et al. 2019

Ind. Eng. Chem. Res.

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“…Therefore, here the work of Xing et al is presented just as an example of such research. These authors in their experiments proved that the crystallization rate of poly(ethylene terephthalate) was significantly accelerated and melt-crystallization temperature was increased with the addition of ionomers of poly(styrene-alt-maleic anhydride)/organic montmorillonite nanocomposites [ 27 ]. The nanocomposites acted as heterogeneous nucleating agents which enhanced the crystallization process.…”

Section: Basic Researchmentioning

confidence: 99%

Application of Polymers as a Tool in Crystallization—A Review

et al. 2021

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The application of polymers as a tool in the crystallization process is gaining more and more interest among the scientific community. According to Web of Science statistics the number of papers dealing with “Polymer induced crystallization” increased from 2 in 1990 to 436 in 2020, and for “Polymer controlled crystallization”—from 4 in 1990 to 344 in 2020. This is clear evidence that both topics are vivid, attractive and intensively investigated nowadays. Efficient control of crystallization and crystal properties still represents a bottleneck in the manufacturing of crystalline materials ranging from pigments, antiscalants, nanoporous materials and pharmaceuticals to semiconductor particles. However, a rapid development in precise and reliable measuring methods and techniques would enable one to better describe phenomena involved, to formulate theoretical models, and probably most importantly, to develop practical indications for how to appropriately lead many important processes in the industry. It is clearly visible at the first glance through a number of representative papers in the area, that many of them are preoccupied with the testing and production of pharmaceuticals, while the rest are addressed to new crystalline materials, renewable energy, water and wastewater technology and other branches of industry where the crystallization process takes place. In this work, authors gathered and briefly discuss over 100 papers, published in leading scientific periodicals, devoted to the influence of polymers on crystallizing solutions.

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“…8 Owing to the convenience and costeffectiveness, the use of high efficient NAs has been developed into a common technique used in the industrial practice. Up to now, Numerous nucleating agents have been successfully developed for various important semi-crystalline polymers, such as polypropylene (PP), [9][10][11] polyethylene (PE), 12,13 polyamide (PA), [14][15][16] poly(ethylene terephthalate) (PET), 17 poly(L-lactide) (PLLA), 18,19 Poly(ε-caprolactone) (PCL), 20 make these polymers more extensively applicable. Efforts have also been dedicated to developing suitable NAs for PPS in recent years.…”

Section: Introductionmentioning

confidence: 99%

Effect of calcium pimelate on crystallization kinetics of polyphenylene sulfide

Liu

Feng

2023

J of Applied Polymer Sci

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The use of nucleating agents (NAs) to accelerate semicrystalline polymers crystallization is a widely recognized technique during processing. However, the commercially available NA for poly(phenylene sulfide) (PPS) has been rather limited. In this work, it is found that calcium pimelate (CaPim), a commercial nucleating agent for isotactic polypropylene, could also accelerate the crystallization process of PPS. The influence of CaPim addition on the crystallization behaviors of PPS was investigated under non‐isothermal and isothermal condition. Upon the addition of 0.3 wt% CaPim, the crystallization peak temperature and the onset crystallization temperature increases by 5.3 and 8.4°C at 10°C/min cooling rate, and the half‐time of crystallization reduces 51% at crystallization temperature of 272°C. Polarized optical observation revealed a substantial enhancement in nucleation due to the presence of CaPim. Avrami equation analysis suggested that the nucleating agent significantly increased the crystallization rate constant without affecting the growth dimension. Moreover, Lauritzen–Hoffman theory analysis indicateed that the addition of CaPim lowers the nucleation energy barrier, contributing to its high‐nucleation efficiency. These findings demonstrate that calcium pimelate holds promise as an effective nucleating agent for PPS.

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In situ polymerization of poly(styrene- alt -maleic anhydride)/organic montmorillonite nanocomposites and their ionomers as crystallization nucleating agents for poly(ethylene terephthalate)

Cited by 18 publications

References 48 publications

Reactive Polymer-Functionalized Aligned Multiwalled Carbon Nanotube Bundles-Induced Porous Poly(ethylene terephthalate) Fibers

Reactive Polymer-Functionalized Aligned Multiwalled Carbon Nanotube Bundles-Induced Porous Poly(ethylene terephthalate) Fibers

Application of Polymers as a Tool in Crystallization—A Review

Effect of calcium pimelate on crystallization kinetics of polyphenylene sulfide

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