Thermal Decomposition of Polymer Nanocomposites With Functionalized Nanoparticles

Król-Morkisz, Klaudia; Pielichowska, Kinga

doi:10.1016/b978-0-12-814064-2.00013-5

Cited by 79 publications

(63 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the thermal stability of polymeric systems strongly depends on the chemical structure, molecular weight, and degree of crystallinity [ 42 , 43 ]. The thermal stability of the PET/EZT samples is shown in Figure 4 b, and the decomposition temperatures are summarized in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

PET/Bio-Based Terpolyester Blends with High Dimensional Thermal Stability

et al. 2021

View full text Add to dashboard Cite

To improve the dimensional thermal stability of polyethylene terephthalate (PET), a poly(ethylene glycol 1,4-cyclohexane dimethylene (CHDM) isosorbide (ISB) terephthalate) (PEICT) known as ECOZEN®T110 (EZT) was introduced into PET using a melt blending technique. The miscibility, morphology, and thermal properties of the PET/EZT samples were investigated. The introduction of amorphous EZT into semi-crystalline PET increased the glass transition temperature (Tg) but decreased the crystallinity, which could be related to the transesterification reaction. By adding EZT contents up to 20%, the PET/EZT samples showed a single Tg, which indicated the miscibility between PET and EZT. However, two Tg values were observed in the PET/EZT samples with higher EZT contents (30–70%), indicating partial miscibility. This may have been due to the slightly different rheological and thermodynamic parameters that were affected by a higher ratio of bulky (rigid ISB and ductile CHDM) groups in EZT. However, the heat distortion temperature of the PET/EZT samples remarkably increased, which indicated that the dimensional stability was truly enhanced. Although the crystallinity of the PET/EZT samples decreased with increasing EZT content, the tensile strength and Young’s modulus decreased slightly. Based on these results, the as-prepared PET/EZT samples with high dimensional stability can be used as a high-temperature polymeric material in various applications.

show abstract

Section: Resultsmentioning

confidence: 99%

PET/Bio-Based Terpolyester Blends with High Dimensional Thermal Stability

et al. 2021

View full text Add to dashboard Cite

show abstract

“…These inorganic precursors (GPTMS, PTMS, PFOTES, TTIP) formed poly oligomeric silsesquioxanes which can be easily introduced into polymeric matrix both by physical mixing and by chemical bonding through sol–gel reaction. [ 17 ] In particular, the combination of precursors containing polar and non‐polar alkyl groups make it possible to mix well with any types of polymers. In this regard, we synthesized organic‐inorganic hybrid materials by mixing various inorganic precursors with our polymeric matrix by AFAPs.…”

Section: Resultsmentioning

confidence: 99%

Printable Ultra‐Flexible Fluorinated Organic–Inorganic Nanohybrid Sol–Gel Derived Gate Dielectrics for Highly Stable Organic Thin‐Film Transistors and Other Practical Applications

Kwon

Baek

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

A novel fluorinated organic–inorganic (O–I) hybrid sol—gel based material, named FAGPTi, is successfully synthesized and applied as a gate dielectric in flexible organic thin‐film transistors (OTFTs). The previously reported three‐arm‐shaped alkoxysilane‐functionalized amphiphilic polymer yields a stable O–I hybrid material consisting of uniformly dispersed nanoparticles in the sol‐state. Here, a fluorinated precursor is introduced into the system, making it possible to realize more stable spherical composites. This results in long‐term colloidal stability (≈1.5 years) because composite growth is strongly inhibited by the presence of fluorine groups with intrinsically strong repulsive forces. Additionally, the FAGPTi film is easily deposited via thermally annealed sol–gel reactions; the films can be successfully fabricated through the printing method, and exhibit excellent flexibility and enhanced insulating properties compared to existing materials. OTFTs with FAGPTi layers show highly stable driving characteristics under severe bending conditions (1.9% strain). Integrated logic devices are also successfully operated with these OTFTs. Additionally, it can facilely be applied to amorphous indium‐gallium‐zinc‐oxide (a‐IGZO) TFT devices other than OTFT. Therefore, this synthetic strategy can provide useful insights into the production of functional O–I hybrid materials, enabling the efficient fabrication of electronic materials and devices exhibiting these properties.

show abstract

“…This is called ozone and thermo-oxidative aging [ 15 ]. There are strong links between the types of degradation presented above and, as mentioned, there are often several types of degradation at the same time [ 34 ]. An example is the simultaneous action of oxygen, light and other atmospheric factors [ 32 ].…”

Section: Degradation Of Polymersmentioning

confidence: 99%

“…Each type of polymer degradation is characterized by a specific molecular mechanism. Additionally, different mechanisms may be involved in the degradation of a material simultaneously [ 34 ]. The initial reaction during this process is always cracking of a bond in the polymer chain or other molecule that initiates degradation.…”

Section: Degradation Of Polymersmentioning

confidence: 99%

Lifetime Prediction Methods for Degradable Polymeric Materials—A Short Review

2020

View full text Add to dashboard Cite

The determination of the secure working life of polymeric materials is essential for their successful application in the packaging, medicine, engineering and consumer goods industries. An understanding of the chemical and physical changes in the structure of different polymers when exposed to long-term external factors (e.g., heat, ozone, oxygen, UV radiation, light radiation, chemical substances, water vapour) has provided a model for examining their ultimate lifetime by not only stabilization of the polymer, but also accelerating the degradation reactions. This paper presents an overview of the latest accounts on the impact of the most common environmental factors on the degradation processes of polymeric materials, and some examples of shelf life of rubber products are given. Additionally, the methods of lifetime prediction of degradable polymers using accelerated ageing tests and methods for extrapolation of data from induced thermal degradation are described: the Arrhenius model, time–temperature superposition (TTSP), the Williams–Landel–Ferry (WLF) model and 5 isoconversional approaches: Friedman’s, Ozawa–Flynn–Wall (OFW), the OFW method corrected by N. Sbirrazzuoli et al., the Kissinger–Akahira–Sunose (KAS) algorithm, and the advanced isoconversional method by S. Vyazovkin. Examples of applications in recent years are given.

show abstract

Thermal Decomposition of Polymer Nanocomposites With Functionalized Nanoparticles

Cited by 79 publications

References 64 publications

PET/Bio-Based Terpolyester Blends with High Dimensional Thermal Stability

PET/Bio-Based Terpolyester Blends with High Dimensional Thermal Stability

Printable Ultra‐Flexible Fluorinated Organic–Inorganic Nanohybrid Sol–Gel Derived Gate Dielectrics for Highly Stable Organic Thin‐Film Transistors and Other Practical Applications

Lifetime Prediction Methods for Degradable Polymeric Materials—A Short Review

Contact Info

Product

Resources

About