Relations of weight-average molecular weights and the thermal properties of N-cyclohexyl maleimide–methyl methacrylate
✍ Scribed by Dong Shaosheng; Wang Qingmin; Wei Yuezhen; Zhang Zhiqian
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 117 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
N-cyclohexyl maleimide (CHMI) was used to copolymerize with methyl methacrylate (MMA) by a suspension copolymerization method to produce heat-resistant poly(MMA) (PMMA) in this article. The copolymers were synthesized by changing the weight fractions of azobisisobutyronitrile (AIBN) and dodecanethiol (DDM), while the weight ratio of CHMI to MMA was defined. The effects of the weight fractions of AIBN and DDM on weight-average molecular weight (M w ) were studied. Meanwhile, relations between M w and the glass transition temperature (T g ) and decomposition temperature (T d ) and M w and the melt flow index (MFI) were described.
📜 SIMILAR VOLUMES
The composite gel permeation chromatography (GPC) chromatogram of a mixture of polystyrene and poly(methy1 methacrylate) has been successfully resolved into its component chromatograms by using a newly developed technique. This technique has made possible the calculation of a, and an values of these