Mangiferin as chain transfer agent: effect on the molecular weight of poly(methyl methacrylate) and polystyrene

被引：3
|
作者：
Jaiswal, Shilpa [1 ]
Ramesh, Kalyan [1 ,2 ]
Kapusetti, Govinda [1 ]
Ray, Amit Kumar [1 ]
Ray, Biswajit [2 ]
Misra, Nira [1 ]
机构：
[1] Banaras Hindu Univ, Indian Inst Technol, Sch Biomed Engn, Varanasi 221005, Uttar Pradesh, India
[2] Banaras Hindu Univ, Fac Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India
来源：
POLYMER BULLETIN | 2015年 / 72卷 / 06期
关键词：
Styrene; Methyl methacrylate; Radical polymerization; Chain transfer; Mangiferin; NATURALLY-OCCURRING GLUCOSYLXANTHONE; BOND-DISSOCIATION ENTHALPIES; NECROSIS-FACTOR-ALPHA; INDICA L. EXTRACT; FACTOR-KAPPA-B; ANTIOXIDANT ACTIVITY; PYRROLIDONE) BLENDS; LIPID-PEROXIDATION; POLYMERIZATION; PHENOLS;
D O I：
10.1007/s00289-015-1343-2
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Free radical polymerization of methyl methacrylate (MMA) and styrene (St) has been performed in N, N-dimethylformamide (DMF) at 70 degrees C in the presence of varying concentration of mangiferin as chain transfer agent using 2,2'-azobisisobutyronitrile (AIBN) as initiator. With increase in mangiferin concentration, molecular weight of the obtained polySt gradually decreases as expected due to the chain transfer phenomenon, but that of polyMMA interestingly increases possibly due to the preferential auto-acceleration phenomenon during MMA polymerization in the presence of higher concentration of mangiferin. The observed chain transfer constant of mangiferin for styrene polymerization is 0.14. The incorporation of mangiferin in the resultant polymers is confirmed by FTIR and UV-Vis studies. [GRAPHICS] .
引用
收藏
页码：1407 / 1416
页数：10
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