rosin and pentaerythritol

rosin has been researched along with pentaerythritol* in 2 studies

Other Studies

2 other study(ies) available for rosin and pentaerythritol

Article	Year
Characteristics and Kinetics of Rosin Pentaerythritol Ester via Oxidation Process under Ultraviolet Irradiation. Molecules (Basel, Switzerland), 2018, Oct-30, Volume: 23, Issue:11 A self-designed reaction device was used as a promising equipment to investigate the oxidation characteristics and kinetics of rosin pentaerythritol ester (RPE) under UV irradiation. Photo-oxidation kinetics and the initial quantum yield (Φ) of RPE were calculated. The initial oxidation product of the photo-oxidation reaction-peroxide was analyzed by iodimetry. The peroxide concentration is related to the light intensity (I) and the temperature (T), and the increasing T and I would destabilize the RPE by accelerating peroxide forming. Photo-oxidation of RPE follows the pseudo first-order reaction kinetics. The relationship between activation energy and logarithm of light intensity (ln I) is linear, and it is expressed as Ea = -4.937ln I + 45.565. Φ was calculated by the photo-oxidation kinetics, and the average value of Φ was 7.19% in the light intensity range of 200⁻800 μW cm Topics: Esters; Hydrogen Peroxide; Kinetics; Oxidation-Reduction; Propylene Glycols; Resins, Plant; Ultraviolet Rays	2018
Pentaerythritol-esterified gum rosin as a sensitizer in Granuflex hydrocolloid dressing. Contact dermatitis, 1999, Volume: 41, Issue:3 Topics: Bandages, Hydrocolloid; Colloids; Cross Reactions; Dermatitis, Allergic Contact; Humans; Occlusive Dressings; Patch Tests; Propylene Glycols; Resins, Plant	1999

Article

Year

Characteristics and Kinetics of Rosin Pentaerythritol Ester via Oxidation Process under Ultraviolet Irradiation.

Molecules (Basel, Switzerland), 2018, Oct-30, Volume: 23, Issue:11

A self-designed reaction device was used as a promising equipment to investigate the oxidation characteristics and kinetics of rosin pentaerythritol ester (RPE) under UV irradiation. Photo-oxidation kinetics and the initial quantum yield (Φ) of RPE were calculated. The initial oxidation product of the photo-oxidation reaction-peroxide was analyzed by iodimetry. The peroxide concentration is related to the light intensity (I) and the temperature (T), and the increasing T and I would destabilize the RPE by accelerating peroxide forming. Photo-oxidation of RPE follows the pseudo first-order reaction kinetics. The relationship between activation energy and logarithm of light intensity (ln I) is linear, and it is expressed as Ea = -4.937ln I + 45.565. Φ was calculated by the photo-oxidation kinetics, and the average value of Φ was 7.19% in the light intensity range of 200⁻800 μW cm

Topics: Esters; Hydrogen Peroxide; Kinetics; Oxidation-Reduction; Propylene Glycols; Resins, Plant; Ultraviolet Rays

2018

Pentaerythritol-esterified gum rosin as a sensitizer in Granuflex hydrocolloid dressing.

Contact dermatitis, 1999, Volume: 41, Issue:3

Topics: Bandages, Hydrocolloid; Colloids; Cross Reactions; Dermatitis, Allergic Contact; Humans; Occlusive Dressings; Patch Tests; Propylene Glycols; Resins, Plant

1999