Macromol. Rapid Commun. 1/2013

Wilbon, Perry A.; Chu, Fuxiang; Tang, Chuanbing

doi:10.1002/marc.201370001

Cited by 68 publications

(110 citation statements)

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“…The softening point is also an important property of rosin ester. 1 As illustrated in Figure 6, the softening points of GTRs depended mainly on the tung oil/rosin weight ratio. Increase in the amount of tung oil led to the low in the softening points of GTRs.…”

Section: Thermal and Physical Properties Of Gtrmentioning

confidence: 99%

“…Therefore, rosin has been extensively used as a raw material for the preparation of various monomers and polymers with specific chemical structures and valuable properties. 1 In recent years, more and more efforts have been made to prepare rosin esters or polyesters used as tackifiers for adhesives and rubbers, as film-forming materials for coating and printing inks, as microencapsulating products used in chewing gum and cosmetics. [2][3][4][5][6][7][8][9][10][11][12][13][14] To increase molecular weight and improve properties of the esters, rosin acids are modified by hydrogenation, dehydrogenation, or formation of Diels-Alder adducts before esterification.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of glycerin ester of tung oil modified rosin

Ma¹,

Zhang

et al. 2013

J of Applied Polymer Sci

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Tung oil modified rosins (TR) were prepared by reaction rosin with different amount of tung oil via Diels-Alder addition reaction and further used in the formulation of glycerin ester of tung oil modified rosins (GTR) with flexible characteristics. The effects of the amount of tung oil on the bromine value, molecular weight, thermostability, physical, and tackifying properties of GTRs were studied. The results showed that the bromine value of GTRs decreased and molecular weight of GTRs increased with the increase in the amount of tung oil. Meanwhile, increasing the amount of tung oil resulted in a significant decrease in both the softening points and viscosities of GTRs, but a slight increase in the thermostability of GTRs due to the incorporation of the flexible fatty chains into the rigid hydrophenanthrene units in rosins. Applied in PU adhesive as tackifier, the increase of the flexible chains content in GTRs led to an increase first and then decrease in both the miscibility of GTRs with PU and the T-peel strength of adhesives. The elongation at break of films increased monotonously, but their tensile strengths increased first and then decreased with increasing the flexible chains content in GTRs. GTRs with desired properties were prepared when the tung oil/rosin weight ratios were in the range from10/100 to 40/100.

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Section: Thermal and Physical Properties Of Gtrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and properties of glycerin ester of tung oil modified rosin

Ma¹,

Zhang

et al. 2013

J of Applied Polymer Sci

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“…Molecules such as sugars [10] and wood derivatives (e.g. terpens, rosin, lignin, cellulose) [11][12][13] are very important feedstock to design novel monomers for the synthesis of polymeric materials with original features and properties.…”

Section: Introductionmentioning

confidence: 99%

“…13 C NMR spectra of undecenol (1), esterified abietic acid dimers (2) and abietic acid dimers(3) in CDCl 3 at room temperature.…”

mentioning

confidence: 99%

Dimerization of abietic acid for the design of renewable polymers by ADMET

Llevot

Grau

Carlotti

et al. 2015

European Polymer Journal

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International audienceCationic dimerization of abietic acid, a resource from tall oil or pines, was investigated. Diacid dimers were obtained in good yields and isolated from abietic acid. These diacids were esterified with undecenol to give bisunsaturated derivatives. The latter were then homopolymerized or copolymerized with undecenyl undecenoate employing ADMET methodology, leading to thermoplastic polymers with molar mass up to 40,000 g/mol. While the copolymers exhibit melting points around 50 degrees C, the homopolymer of abietic acid dimer is amorphous with a Tg around 100 degrees C

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“…These oxygenated derivatives of limonene are very valuable intermediates used in the production of flavors, perfumes, cosmetics, food additives, drugs and agrochemicals [11,15] and also polymers-especially fragrant ones [19,20]. Moreover, perillyl alcohol is an efficacious compound against the formation and progression of various cancers (pancreatic, mammary and liver tumors) and it is a chemopreventive agent for colon, skin and lung cancer [21,22].…”

Section: Introductionmentioning

confidence: 99%