Application of Poly(styrene-co-divinylbenzene) Macroporous Microparticles as a Catalyst Support in the Enzymatic Synthesis of Biodiesel

Castiglioni, Gabriel Luis; Cuellar, Jorge; Rodrigo, Raúl; Costa, Jorge Alberto Vieira; Monte-Alegre, Ranulfo

doi:10.1007/s10924-016-0769-4

Cited by 7 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this context, catalysis is essential for a higher efficiency chemical process. It aids in the reaction success, providing a reduction in the activation energy barrier 6,8,9 …”

Section: Introductionmentioning

confidence: 99%

“…It aids in the reaction success, providing a reduction in the activation energy barrier. 6,8,9 Considering the contribution catalysts bring to the polymer industry, the development of an efficient, greener, reusable, and/or recyclable catalyst has been desirable. 10 Dalal and co-workers published a study pointing out the use of Lewis and Bronsted acids and bases as catalysts for biodegradable polyesters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of polyaniline protonation onPLGApolycondensation viaSty‐DVB/Pani catalyst

Gomes

Moura

Chaves

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

This study presents a method to polymerize aniline in styrene‐divinylbenzene copolymer pores using benzoyl peroxide as an initiator. The composites are sulfonated, impregnated with tin oxide (IV) and used as heterogeneous catalysts in the direct polycondensation synthesis of PLGA. Evaluation of parameters such as molar proportion, temperature, time, quantity and type of catalyst were carried out. The characterization of composites and PLGA's were performed by: elemental analysis, DRX, FTIR, nitrogen adsorption–desorption, Brønsted acid site determination, SEM, ICP/OES, and inherent viscosity. The polyaniline deprotonation before thermal treatment enhances crosslinking, increasing surface area and stability of the porous structure. The composite acts as a catalyst, increasing PLGA molar mass, reducing oxidation and tin contamination. The process has several advantages like PLGA production without solvent contamination, lower tin content, and no high‐cost cyclic dimmers use. So far, the results show promising catalytic performance of the developed composite.

show abstract

“…In this context, catalysis is essential for a higher efficiency chemical process. It aids in the reaction success, providing a reduction in the activation energy barrier 6,8,9 …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of polyaniline protonation onPLGApolycondensation viaSty‐DVB/Pani catalyst

Gomes

Moura

Chaves

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…Poly(styrene‐ co ‐divinylbenzene) materials containing magnetic iron oxide particles have been successfully used for lipase immobilization. Polystyrene is a commercially available aromatic polymer sold as a gel‐type resin (no permanent pores) or a macroporous resin (permanent pores).…”

Section: Introductionmentioning

confidence: 99%

Prediction and comparison of textural properties of magnetic copolymer supports for enzyme immobilization

Rosa

Silva

Aguiar

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Magnetic polymers supports have proven to be valuable materials for enzyme immobilization, as they allow recovering the catalyst by magnetic separation, precluding the need for costly and time‐consuming separation steps. In this study, magnetic copolymer supports were synthesized using styrene (STY) and different crosslinking agents (divinylbenzene, ethylene glycol dimethacrylate, or triethylene glycol dimethacrylate) and initiators (azobisisobutyronitrile or benzoyl peroxide) and used to immobilize Candida antarctica lipase B (CALB). The aim was to obtain biocatalysts with high enzymatic activity and satisfactory morphological properties for use in biotransformation reactions. Two morphological properties known to influence the immobilization yield were taken into consideration, specific surface area, and swelling index. Experimental data were compared to the predictions of a model based on molar balance, method of moments, numerical fractionation, and elementary gel structures. The high correlation (R2 = 0.9974) between experimental and predicted values demonstrated the suitability of the model for estimating the textural properties of enzyme supports. CALB was successfully immobilized, showing high hydrolytic activity (500–700 U g−1) and good thermal stability at 50°C. CALB/STY‐EGDMA‐M was 14 times more stable than free CALB. The results confirm the efficiency of the immobilization method and the suitability of the copolymers for enzyme immobilization.

show abstract

“…Polistirenin (PS) divinil benzen (DVB) ile çapraz bağlı gözenekli kopolimerleri 1950'li yıllarda keşfedilmiş ve genelde iyon değiştiriciler, gaz, sıvı ayırma prosesleri [1], katalitik uygulamalar, organik sentez gibi alanlarda yaygın kullanım alanı bulmuştur [2]. Stiren divinil benzen (SDVB) kopolimerleri; Amberlist, Amberlite, Dowex gibi isimlerle adlandırılan endüstriyel termoplastik ve reçinelerin temel yapı malzemesini oluşturur.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Amonyak boran varlığında gözenekli stiren divinil benzen kopolimer küreciklerin optimum sentez koşullarının belirlenmesi

Özkan¹,

Özkan²,

İnce³

et al. 2017

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

View full text Add to dashboard Cite

Application of Poly(styrene-co-divinylbenzene) Macroporous Microparticles as a Catalyst Support in the Enzymatic Synthesis of Biodiesel

Cited by 7 publications

References 23 publications

Evaluation of polyaniline protonation onPLGApolycondensation viaSty‐DVB/Pani catalyst

Evaluation of polyaniline protonation onPLGApolycondensation viaSty‐DVB/Pani catalyst

Prediction and comparison of textural properties of magnetic copolymer supports for enzyme immobilization

Amonyak boran varlığında gözenekli stiren divinil benzen kopolimer küreciklerin optimum sentez koşullarının belirlenmesi

Contact Info

Product

Resources

About