Synthesis and Characterization of Acrylic Acid-g-(𝜅-Carrageenan) Copolymer and Study of Its Application

Table 1

Grafting ratio and swelling behavior of acrylic acid-g-carrageenan as a function of the concentration of acrylic acid. [PMS] = 14.0 × 10⁻³ mol dm⁻³; [MSA] = 32.0 × 10⁻⁴ mol dm⁻³; [H⁺] = 15.0 × 10⁻⁴ mol dm⁻³; [CGN] = 1.0 g dm⁻³; Time = 120 min.; Temp = 40°C.

Sample Code	[Acrylic acid] × 10^2 mol dm^−3	%𝐺	𝑃𝑆	𝑆𝑅
CAA1	8.0	330.0	310	3.1
CAA2	12.0	336.0	328	3.3
CAA3	16.0	380.0	342	3.4
CAA4	18.0	510.0	390	3.9
CAA5	20.0	535.0	396	4.0
CAA6	22.0	494.0	382	3.8
CAA7	24.0	450.0	360	3.6

[PMS] = concentration of potassium peroxymonosulphate, [MSA] = concentration of mercaptosuccininc acid, [CGN] = concentration of carrageenan.