Polymerization kinetics for the preparation of poly(p-divinylbenzene) via a miniemulsion polymerization process

Choi, Eunhwa; Jin, Seon Mi; Park, Yeji; Kim, Yangsoo

doi:10.1016/j.jcice.2008.05.002

Cited by 4 publications

(2 citation statements)

References 15 publications

(13 reference statements)

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“…Kinetic study of PPSE preparation. Kinetics of polymerization reaction can be achieved by both indirect methods [8][9][10][11] in which a physical property relevant to the extent of reaction is detected and direct methods [12][13][14][15][16] in which the concentration of reactant or product is determined. For the synthesis of PPSE, the reaction rate can be determined by analyzing the consumption rate of the reactant or the formation rate of product.…”

Section: Methodsmentioning

confidence: 99%

Kinetic Study on the Preparation of Poly(Phenylene Sulfide Ether)

et al. 2010

AMR

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The polycondensation kinetics of 4,4’-dihydroxydiphenyl sulfide (DHPS) with 4,4’-dichloro diphenylsulfide (DCPS) was investigated in the presence of catalyst 2A. The reaction follows second-order kinetics and the reaction rate is a bimodal, a relatively lower rate initially and a faster rate after 3h. The initially lower rate is attributed to the lower solubility of DHPS salt in organic solvent. The results show higher polymerization temperature leads to higher conversion and finial reaction extent after 7h. In the present work, catalyst 2A/DHPS molar ratio of 0.17 is considered more suitable for PPSE preparation. The activation energy of two-stage polymerization of PPSE is 104.5kJ/mol and 79.33kJ/mol, respectively. According to obtained kinetics parameters, curves of fractional conversion versus reaction time were simulated and compared with experimental curves at different temperatures.

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Section: Methodsmentioning

confidence: 99%

Kinetic Study on the Preparation of Poly(Phenylene Sulfide Ether)

et al. 2010

AMR

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“…In these applications, understanding of its kinetics is important for the large‐scale production of those polymers 14,15 . As usual, polymerization kinetics depends on many factors such as polymerization rate, initiator concentration, monomer concentration, and temperature 16‐19 . Production of polymer or copolymer with high yields also requires polymerization kinetics of the polmer 20 …”

Section: Introductionmentioning

confidence: 99%

P(DADMAAC‐co‐DMAA): Synthesis, thermal stability, and kinetics

Akhmetzhan

Ташенов

Abeu

et al. 2020

Polymers for Advanced Techs

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The kinetics of copolymerization is one of the key factors for optimization the process in large scale of production. Copolymerization of N, N‐dimethyl‐N,N‐diallyammonium chloride (DMDAAC) with N,N‐dimethyl acrylamide (DMAA) was studied by a dilatometer technique using ammonium persulfate ([NH4]2S2O8) as an initiator. The effect of the parameters (including molar ratio of DMDAAC to DMAA, concentrations of monomers [M] and initiator [I], and the temperature) on the polymerization rate was analyzed. From these analyses it was found that the polymerization rate (Rp) with the above variables can be represented as the following relationship: Rp∝ [M]2.63; Rp∝ [I]0.40 andRp∝[MDMDAAC:MDMAA]‐0,86.The negative order found in the relationship of the reaction rate and the monomer composition indicated that the DMDAAC concentration in the monomers composition conversely affected the polymerization rate. The overall activation energy for the polymerization rate was 39.56 kJ/mol in the temperature range between 40°C and 60°C. Based on the experimental results, the mechanism of polymerization is discussed in detail. Different thermal properties for DMDAAC and DMDAAC‐DMAA were observed by differential scanning calorimetry (DSC), and thermogravimetry (TG) analysis. Addition of DMAA to DMDAAC lowered the thermal stability relative to the home polymer of DMDAAC.

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