Peroxide-initiated grafting of maleic anhydride onto linear and branched hydrocarbons
โ Scribed by S. Ranganathan; W. E. Baker; K. E. Russell; R. A. Whitney
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 173 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0887-624X
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โฆ Synopsis
The structural features of the grafting of maleic anhydride onto low-molecular-weight compounds have been elucidated using several spectroscopic and analytical techniques. Conclusive evidence for the occurrence of singly grafted anhydride residues in multiply grafted products has been established using 2,3-13 C 2 labeled maleic anhydride. In homogeneous solution, at the low concentrations of maleic anhydride employed, there is little evidence for oligomeric or polymeric grafts to dodecane, pristane, or squalane. The results suggest that isothermal grafting of maleic anhydride to hydrocarbon polymers should also lead to a predominance of single grafts.
๐ SIMILAR VOLUMES
Styrene and maleic anhydride (MAn) were successfully grafted, alone and simultaneously, onto various model hydrocarbon substrates at 180 ยฐC with 2,5-dimethyl-2,5-di-(t-butyl peroxy)hexane (L101) as a free-radical initiator. Dodecane, 1-dodecene, and 2,6,10,14-tetramethylpentadecane were selected as
## SYNOPSIS Isotactic polypropylene was grafted with maleic anhydride using benzoyl peroxide as an initiator and toluene as a solvent. Effects of various parameters such as monomer and initiator concentration, reaction time, and reaction temperature on percentage grafting were studied. Effect of v
Grafting reactions were performed in a Haake torque rheometer, according to a central composite experimental design, where the maleic anhydride and peroxide concentrations, rotor speed, and reaction time were varied. The 27 formulations were analyzed by Fourier transformed infrared spectroscopy and
Maleic anhydride (MAn) was grafted onto the low molecular weight esters methyl decanoate (MD) and methyl 2-ethylhexanoate (MEH) using the free-radical initiators Lupersol-101 and -130; the esters were used as model compounds for the copolymer poly(ethylene-co-methyl acrylate). The grafted products i