Thermal degradation behavior of poly(vinyl chloride) in the presence of poly(glycidyl methacrylate)

Sabaa, Magdy W.; Farag, Zeinab R.; Mohamed, Nadia A.

doi:10.1002/app.28812

Cited by 17 publications

(8 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the past few decades, various compounds have been studied as PVC stabilizers, such as metal soaps [7], lead salts [8], and organotin [9,10,11]. Although lead salts and organotin have been shown to be highly effective in stabilizing PVC, the properties of high toxicity for lead salts and high price for organotin limit their application [9,10,11].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Feng

Zhan

et al. 2019

Polymers

View full text Add to dashboard Cite

Zinc orotate (ZnOr2), which is a new kind of poly(vinyl chloride) (PVC) stabilizer, is prepared in this work through the precipitation method, and its impact on the thermal stability of PVC is measured by thermogravimetric analysis (TG), Congo red test, and discoloration test. The results exhibit that the thermal stability of PVC is positively enhanced after the addition of ZnOr2. In contrast with a commercial thermal stabilizer, zinc stearate (ZnSt2), a noteworthy improvement was observed that ZnOr2 could postpone the “zinc burning” of PVC. This is principally ascribed to the Or anion in the structure of ZnOr2 being able to absorb the HCl released by PVC, and to supersede unstable chlorine atoms in the structure of PVC. In addition, blending ZnOr2 with calcium stearate (CaSt2) in diverse mass ratios can significantly accelerate the thermal stability of PVC. Optimum performance was achieved with a CaSt2:ZnOr2 ratio of 1.8:1.2. Moreover, an outstanding synergistic effect can be observed when CaSt2/ZnOr2 is coupled with other commercial auxiliary stabilizers. The initial color and long-term stability of PVC including CaSt2/ZnOr2 is significantly increased when pentaerythritol (PER) is added, while dibenzoylmethane (DBM) can only improve its long-term thermal stability.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Feng

Zhan

et al. 2019

Polymers

View full text Add to dashboard Cite

show abstract

“…31,32 The 5% weight loss temperature (T 5 ) and the peak temperature in derivative thermogravimetric curve (T max ) of PGMA obtained from the thermogravimetric analysis (TGA) curve are about 218 C and 284 C, respectively (Table 1 and Figure 3), which agree well with the reported results. 33 After the incorporation of POSS into PGMA, the initial degradation temperature (T 5 ) of the BCP increases with increasing POSS content (approximately 20 C in 10G5P and approximately 66 C in 10G10P). Moreover, the T max s of POSSbased copolymers (peaks b and c) were higher than that of GMA homopolymer (peak a, approximately 284 C).…”

Section: Synthesis and Characterization Of Reactive Nanomodifier: Pgma-b-p(ma-poss) Diblock Copolymermentioning

confidence: 98%

Nanostructure of reactive polyhedral oligomeric silsesquioxane-based block copolymer as modifier in an epoxy network

Chen

Huang

et al. 2016

High Performance Polymers

View full text Add to dashboard Cite

To obtain a novel polyhedral oligomeric silsesquioxane (POSS)-based nanomodifier, copolymerization of methacrylate-POSS (MA-POSS) and glycidyl MA (GMA) was carried out via reversible addition-fragmentation chain transfer process. The as-synthesized poly(glycidyl methacrylate) (PGMA)-b-P(MA-POSS) block copolymers (BCPs) were characterized by proton nuclear magnetic resonance, Fourier transform infrared spectroscopy, and gel permeation chromatography. The introduction of a POSS component improved the thermostability of the BCP. Then, PGMA-b-P(MA-POSS) copolymer was reactively incorporated into 4,4′-methylenebis(2,6-diethylaniline) and the epoxy network. Compared with commercial inert MA-POSS-methyl MA (POSS-MMA) copolymers (15 wt% and 45 wt% POSS, respectively), PGMA-b-P(MA-POSS) can self-assemble in epoxy to micelles with diameters of 20–40 nm. Due to the formation of uniform nanostructures, reactive POSS-modified epoxy composites exhibited higher glass transition temperature and double the rubbery state moduli (87 MPa) than neat epoxy (41 MPa). This work provided an efficient way to fabricate a POSS-based nanocomposite via the introduction of nanomodifier PGMA-b-P(MA-POSS) which can pre-react with reactive monomer.

show abstract

“…To avoid this problem, the attention of many researchers has directed toward using thermal stabilizers having organic nature and free from metals. Organic thermal stabilizers are characterized by lower toxicity, environmental friendly, economical and have higher stabilization efficiency for PVC compared with classical stabilizers 5‐9 . Due to the shortness of the fabrication period of PVC, most amount of the stabilizer stays unreacted, thus the PVC products possess high quantity of thermal stabilizer.…”

Section: Introductionmentioning

confidence: 99%

Phthalimido thioureas with high antimicrobial performance as stabilizers for enhancement of the thermal stability of poly(vinyl chloride) loaded with multi‐walled carbon nanotubes

Mohamed

El‐Ghany

Fahmy

et al. 2020

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

Some novel phthalimido thiourea stabilizers 1–4 were readily synthesized. Their structure was elucidated by elemental analysis, FTIR, 1H‐NMR, and mass spectroscopy. They showed good antimicrobial activity, in particularly the carboxyl derivative, as judged by their high inhibition zone diameter and low minimum inhibition concentration using the agar well diffusion technique. The results reveal the greater stabilizing efficiency of these stabilizers relative to dibasic lead carbonate, Cd‐Ba‐Zn stearate, and n‐OTM reference thermal stabilizers using TG technique in nitrogen. This is well illustrated by the higher initial decomposition temperature and lower rates of both weight loss and discoloration of the polymer during degradation. Moreover, the stabilizing efficiency is influenced by the nature of the substituent group in these stabilizers. While the methyl stabilizer is characterized by a greater efficiency relative to those of the chloro and carboxyl ones, the non‐substituted stabilizer lies between these two cases. The good disperse‐ability of multi‐walled carbon nanotubes (MWCNTs) into the polymeric material was ascertained using FTIR, XRD, SEM, and TEM. The thermal stability of PVC, which stabilized with 4, has been appreciably improved via loading 1 wt% of MWCNTs into its matrices. Further, PVC nanocomposites showed very high inhibition efficiency against Staphylococcus aureus and Escherichia coli.

show abstract

Thermal degradation behavior of poly(vinyl chloride) in the presence of poly(glycidyl methacrylate)

Cited by 17 publications

References 36 publications

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Nanostructure of reactive polyhedral oligomeric silsesquioxane-based block copolymer as modifier in an epoxy network

Phthalimido thioureas with high antimicrobial performance as stabilizers for enhancement of the thermal stability of poly(vinyl chloride) loaded with multi‐walled carbon nanotubes

Contact Info

Product

Resources

About