Synthesis and Characterization of Multifunctional Cotton Containing Cyclodextrin and Butylacrylate Moieties

Abstract

Herein we report new approaches for multifunctionalization of cotton fabric using reactive cyclodextrin (RCD), butylacrylate (BuA) and a newly developed initiator which is based on potassium persulphate/ammonium persulphate (KPS/APS) mixture. The first approach involves preparation of reactive preformed polymer and thus obtained polymer is grafted to cotton fabric in subsequent steps. The second approach addresses concurrent in situ grafting of cotton fabric using the same initiator in presence of RCD, and BuA. Indeed, occurence of the three types of grafting occurs, as evidenced by FTIR and SEM analysis. The presence of BuA moieties in the molecular structure of cotton renders it soft. Also presence of RCD moieties with tours-shaped cavity of cyclodextrin provides several possibilities for imparting new and significantly improved properties to cotton fabric. This would depend upon nature and amount of guest compounds accommodated in cyclodextrin cavities. Characterization of the products were monitored to SEM, FTIR, ¹H-NMR.

Keywords:

• Butylacrylate
• Grafting
• Mixed initiator
• Modified cotton
• Reactive cyclodextrin

Notes

Condition used: [RCD], 0.317 mole/l; [M], 0.6 mole/l; time 3 hr at 60°C and 24 hours at 30°C, material: liquor ratio, 1:2.5; KPS/APS mixture at equimolar ratio 5:5.

Condition used: [RCD], 0.317 mole/l; [M], 0.6 mole/l; [Initiator], 0.01 mole/l, time 3 hr at 60°C and 24 hours at 30°C.

Condition used: PFP, 5% ows, fixation temperature and time, 150°C/5 min.

Condition used: [RCD], 0.635mole/l; [M], 0.6mole/l; time 3 hr at 60°C and 18 hours at 30°C, molar ratio KPS:APS (4 : 6); M:L 1:1.25.

Condition used: [M], 0.6 mole/l; time 3 hr at 60°C and 18 hours at 30°C, molar ratio KPS:APS 4:6, 0.01 mole/l; M:L 1:1.25.

Condition used: [RCD], 0.635 mole/l; time 3 hr at 60°C and 18 hours at 30°C, molar ratio KPS:APS 4:6; 0.01 mole/l; M:L 1:1.25.

Condition used: [RCD], 0.635 mole/l; [M], 20%ows (owing weight of sample); time 3 hr at 60°C and 18 hours at 30°C, molar ratio KPS:APS 4:6, 0.01 mole/l; M:L 1:1.25.