Differential scanning calorimetry study of linseed oil cured with metal catalysts

Tuman, S. J.; Chamberlain, D. L.; Scholsky, Kevin M.; Soucek, Mark D.

doi:10.1016/0300-9440(95)00605-2

Cited by 56 publications

(36 citation statements)

References 12 publications

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“…It appears that after a period of 8 h the formation of dimers and higher oligomers has taken place. The extent of peroxide formation and oligomerisation is comparable to that observed for the catalytic system of Mn(acac) 3 with bipyridine [23]. …”

Section: Sec Experimentssupporting

confidence: 71%

“…In all cases the induction time is reduced (to 20-80 min) and the rates of EL consumption after the induction period are 4-5 times higher. Starting either from MnCl 2 or Mn(acac) 3 , the ligand L4 seems to give the best performance; the reaction rate for the combination MnCl 2 with two equivalents of the ligand L4 is only slightly lower than that of the combination of Mn(acac) 3 with L4. Both catalytic mixtures have improved activities compared to the earlier reported Mn(acac) 3 in combination with bipyridine [13], which result is included for comparison.…”

Section: Time-resolved Ft-ir Experimentsmentioning

confidence: 98%

“…This has initiated a search to find alternatives for cobalt complexes as drying catalysts in alkyd paint [2,[11][12][13][14]. Recently, our group reported the manganesebased catalyst system [Mn(acac) 3 ]/bpy (bpy = 2,2 -bipyridine), which exhibits a very high activity in the oxidation of unsaturated fatty acids [13]. Unfortunately, [Mn(acac) 3 ] is darkly colored precluding its application in commercial paint products.…”

Section: E-mail Address: Bouwman@chemleidenunivnl (E Bouwman)mentioning

confidence: 99%

“…Recently, our group reported the manganesebased catalyst system [Mn(acac) 3 ]/bpy (bpy = 2,2 -bipyridine), which exhibits a very high activity in the oxidation of unsaturated fatty acids [13]. Unfortunately, [Mn(acac) 3 ] is darkly colored precluding its application in commercial paint products. However, this research result stimulates further research to find new active manganese-based drying catalyst systems.…”

Section: E-mail Address: Bouwman@chemleidenunivnl (E Bouwman)mentioning

confidence: 99%

“…The drying of paints containing unsaturated fatty acids such as alkyd resins, taking place through an oxidative polymerization of the carbon-carbon double bond, is a subject of intense academic and technological interest [1][2][3][4][5]. The drying process is a complex succession and superposition of numerous reactions.…”

Section: Introductionmentioning

confidence: 99%

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New manganese-based catalyst systems for alkyd paint drying

Liu

Kooijman

Spek

et al. 2007

Progress in Organic Coatings

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The autoxidation and oligomerisation of ethyl linoleate (EL) catalyzed by manganese salts in combination with several Schiff-base ligands has been studied making use of time-resolved FT-IR spectroscopy. The results indicate that several of the combinations exhibit relatively high catalytic activity for the autoxidation of EL. One of the catalyst systems was studied in more detail. The reaction between MnCl 2 ·2H 2 O and the Schiff-base ligand (L4) formed by the condensation of 2-pyridinealdehyde and 2-aminopyridine has been studied to clarify the catalytic reaction process. It was found that the Schiff-base ligand L4 reacts with water and the tridentate ligand (2-pyridyl)(2-pyridylamino)methanol (HOL4) is formed. A single crystal structure of [Mn III (OL4) 2 ]Cl·3H 2 O has been determined by X-ray diffraction methods.

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Section: Sec Experimentssupporting

confidence: 71%

Section: Time-resolved Ft-ir Experimentsmentioning

confidence: 98%

Section: E-mail Address: Bouwman@chemleidenunivnl (E Bouwman)mentioning

confidence: 99%

Section: E-mail Address: Bouwman@chemleidenunivnl (E Bouwman)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New manganese-based catalyst systems for alkyd paint drying

Liu

Kooijman

Spek

et al. 2007

Progress in Organic Coatings

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Viscoelastic properties of alkyd ceramers

Sailer

Soucek

1999

J. Appl. Polym. Sci.

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ABSTRACT:The viscoelastic behavior of three alkyd ceramers was studied using dynamic mechanical thermal analysis (DMTA). A commercial product was compared to model alkyds. The model alkyds were prepared from phthalic anhydride, glycerol, and linseed or sunflower seed oil. Three sol-gel precursors, titanium tetra-i-propoxide, titanium di-i-propoxide diacetylacetonate, and zirconium tera-n-propoxide were investigated. The alkyd ceramers were evaluated as a function of both alkyd type and a sol-gel precursor content. The viscoelastic data showed that both EЈ and T g were affected by sol-gel precursor content. Both the crosslink density and T g demonstrated a minimum at low sol-gel precursor contents. After this minimum, both the crosslink density and the T g increased substantially.

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Viscoelastic and thermal properties of linseed oil-based ceramer coatings

Wold¹,

Soucek²

2000

Macromol. Chem. Phys.

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Dynamic mechanical thermal analysis (DMTA) was used to determine the crosslink density and glass transition temperature of various ceramer coatings. The metal‐oxide ceramer coatings were developed using linseed oil as the organic phase with titanium isopropoxide, and zirconium propoxide as the inorganic sol‐gel precursors. The viscoelastic characteristics and tensile properties were investigated as a function of sol‐gel precursor type and content. The phase morphology, and thermal decomposition of these ceramer coatings were evaluated using small‐angle X‐ray scattering (SAXS), and thermal gravimetric analysis (TGA), respectively. The sol‐gel precursor type and content were found to effect the crosslink density, glass transition temperature, and tensile modulus. The morphology of these ceramer coatings was found to primarily depend on sol‐gel precursor concentration. TGA revealed that the thermal history of the ceramer coatings also depended on sol‐gel precursor concentration.

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Differential scanning calorimetry study of linseed oil cured with metal catalysts

Cited by 56 publications

References 12 publications

New manganese-based catalyst systems for alkyd paint drying

New manganese-based catalyst systems for alkyd paint drying

Viscoelastic properties of alkyd ceramers

Viscoelastic and thermal properties of linseed oil-based ceramer coatings

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