Effect of disperse dye structure on dye sorption onto PLA fiber

Karst, David; Nama, Digvijay; Yang, Yiqi

doi:10.1016/j.jcis.2007.01.037

Cited by 55 publications

(50 citation statements)

References 15 publications

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“…9. Application of the correlation for other type of disperse dyes may be impractical as reported by Karst et al (2007). The explanation on molecular parameters affecting the dyeability of disperse dyes on polyester was also given by several researchers.…”

Section: This Concept Was Later U S E D B Y K a R S T And Y A N G T O Cmentioning

confidence: 95%

“…The substituted groups on the dye molecule that formed strong interaction with PLA were -N(C 2 H 4 OCOCH 3 ) 2 , -(CO) 2 NC 3 H 6 OCH 3 , -SO 2 NHC 6 H 5 , -NO 2 , -CN(NH)C 6 H 4 and -CH(CO) 2 C 6 H 4 , while those with -Br and -Cl were among the weakest. The dyes which interacted strongly with PLA would have more negative interaction energy with PLA, bringing a high sorption on the fiber (Karst et al, 2007). …”

Section: This Concept Was Later U S E D B Y K a R S T And Y A N G T O Cmentioning

confidence: 99%

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Dyeing and Fastness Properties of Disperse Dyes on Poly(Lactic Acid) Fiber

Suesat¹,

Suwanruji²

2011

Textile Dyeing

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Section: This Concept Was Later U S E D B Y K a R S T And Y A N G T O Cmentioning

confidence: 95%

Section: This Concept Was Later U S E D B Y K a R S T And Y A N G T O Cmentioning

confidence: 99%

Dyeing and Fastness Properties of Disperse Dyes on Poly(Lactic Acid) Fiber

Suesat¹,

Suwanruji²

2011

Textile Dyeing

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“…[48][49][50] A molecular dynamics (MD) simulation was then performed on this structure using a constant volume/constant temperature ensemble at 383 K. This temperature was selected because experimental sorption of disperse dyes onto PLA fiber occurred at this temperature. 3,5,10,12 The MD simulation was performed for 500,000 steps with a time step of 10 215 s and with an equilibration time of 500 3 10 212 s. The final snapshot of the MD simulation was selected for the next energy minimization, because at this point in the MD simulation, the potential energy oscillated within 6150 kcal/mol. An energy minimization was then performed on this structure using the conjugate gradient method and a convergence criteria of 0.1 kcal/(mol Å ).…”

Section: Building Of Pla Structurementioning

confidence: 99%

“…3,5,10,12 To calculate the DU ads-PLA values for these dyes, the procedure described in the previous section was followed. The temperature used for the MD simulations was 383 K, since experimental sorption of the disperse dyes onto PLA fiber occurred at this temperature.…”

Section: Relation Between Interaction Energy and Sorption Equilibriummentioning

confidence: 99%

Method for predicting sorption of small drug molecules onto polylactide

Karst

Yang

2008

J Biomedical Materials Res

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A method has been developed to predict the percent sorption of small drug molecules onto polylactide (PLA). In this method, molecular modeling is first used to calculate the interaction energy between the adsorbate and PLA. Alternatively, the adsorbate-PLA interaction energy can be calculated by summing the adsorbate functional group contributions to the interaction energy. These functional group contributions have been found in this study. The adsorbate-PLA interaction energy is then substituted into a linear equation to predict the natural log of the sorption equilibrium constant, and the percent sorption is obtained from this value. This linear equation has been developed based on experimental sorption data for dyes on PLA. The predicted percent sorption of two small drugs on PLA has been verified with experimental data. Our method possibly could be used to select appropriate drugs for use in controlled release studies involving PLA. This method also could be used to calculate the functional group contributions to the interaction energies between other drugs and polymers and to predict their percent sorption onto those polymers, which could be used to select drugs suitable for controlled release studies involving those polymers.

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“…However, PLA fiber is most commonly dyed with disperse dyes. One major concern with PLA is that only a limited number of disperse dyes have been found to have good sorption on PLA at the appropriate dyeing temperature [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Poly(lactic acid)/Organoclay Nanocomposite Fibers: Preparation, Characterization and Curcumin Natural Dyeing

Nitayaphat¹,

Jintakosol²

2018

Asian J. Chem.

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The aims of the present study were to use organoclay to improve the property of poly(lactic acid) (PLA) fiber in the dyeing process. Chitosans were used to modify montmorillonite (MMT) to produce organoclay. Poly(lactic acid) was melt-mixed with oganoclay using a twin-screw extruder to achieve a PLA/organoclay nanocomposite. The nanocomposite fiber was then prepared using single-screw extruder. The effects of organoclay on the structure, thermal and dyeing properties of the nanocomposite were also investigated. The results of dyeing show that the nanocomposite fiber was dyeable with natural dye extracted from curcumin. The colour strength was found to be dependent on the amounts of chitosan in the organoclay. The fastness properties such as wash fastness and light fastness were found to be similar to that in traditional fibers. Other properties such as thermal stability were also reported. This study demonstrates that poly(lactic acid) can exhibit natural dyeability through its preparation in nanocomposite form.

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Effect of disperse dye structure on dye sorption onto PLA fiber

Cited by 55 publications

References 15 publications

Dyeing and Fastness Properties of Disperse Dyes on Poly(Lactic Acid) Fiber

Dyeing and Fastness Properties of Disperse Dyes on Poly(Lactic Acid) Fiber

Method for predicting sorption of small drug molecules onto polylactide

Poly(lactic acid)/Organoclay Nanocomposite Fibers: Preparation, Characterization and Curcumin Natural Dyeing

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