✦ LIBER ✦

The effect of grafted TMPM on the radiation resistance of polypropylene

✍ Scribed by Huiliang Wang; Wenxiu Chen

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 174 KB
Volume: 74
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19991128)74:9<2150::aid-app5>3.0.co;2-y

No coin nor oath required. For personal study only.

✦ Synopsis

The ␥-radiation-induced graft copolymerization of 2,2,6,6-tetramethyl-4piperidinyl methacrylate (TMPM) onto polypropylene (PP) was investigated using a simultaneous-irradiation technique. The effects of solvents, atmospheres, dose, and monomer concentration on the percent of grafting were studied. The grafted TMPM showed better thermal stability, solvent extraction resistance, and compatibility with PP than monomeric TMPM or polymeric PTMPM. The stabilizing effectiveness of grafted TMPM on the radiation resistance of PP was found to be better than that of monomeric TMPM. The combination of grafted TMPM and low molecular weight hindered amine light stabilizers showed higher stabilizing effectiveness.

📜 SIMILAR VOLUMES

Effect of stabilizer on the radiation gr

Effect of stabilizer on the radiation grafting of methylmethacrylate onto polypropylene

✍ Y. C. Nho; O. H. Kwon; H. J. Ryu; H. G. Jung; D. S. Shin; J. S. Kim 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 273 KB 👁 2 views

The effects of the molecular weight of polypropylene, nucleating agent, and types of stabilizers on the grafting of methylmethacrylate onto polypropylene sheets were examined. The oxidation of polypropylene sheet surfaces exposed to air after irradiation was studied by measuring survey scan spectra

Effect of penta- and tetramethyl HALS on

Effect of penta- and tetramethyl HALS on the radiation resistance of polypropylene

✍ Huiliang Wang; Wenxiu Chen 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 203 KB

2,2,6,6-Tetramethyl-4-piperidinyl methacrylate (TMPM), a new pentamethyl HALS 1,2,2,6,6-pentamethyl-4-piperidinyl methacrylate (PMPM), their homopolymers (PTMPM and PPMPM), and their copolymers, [i.e., TMPM or PMPM copolymerized with monomers methyl methacrylate (MMA), methacrylic acid (MAA), acryli

Effect of radiation on the crosslinking

Effect of radiation on the crosslinking and branching of polypropylene

✍ Jianming Gao; Yujie Lu; Genshuan Wei; Xiaohong Zhang; Yiqun Liu; Jinliang Qiao 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 115 KB

Effect of solvents on gamma radiation in

Effect of solvents on gamma radiation induced graft copolymerization of methyl methacrylate onto polypropylene

✍ Eman M. El-Nesr 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 160 KB 👁 2 views

## SYNOPSIS Methyl methacrylate was grafted onto polypropylene films using gamma radiation. Effects of different parameters, such as radiation dose, inhibitor concentration, monomer concentration, and type of solvents on the graft yield were investigated. It was established that the graft yield de

Effect of silane-grafted polypropylene o

Effect of silane-grafted polypropylene on the mechanical properties and crystallization behavior of talc/polypropylene composites

✍ Wulin Qiu; Kancheng Mai; Hanmin Zeng 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 98 KB 👁 2 views

Talc-filled polypropylene (PP) composites coupled with silane-grafted polypropylene (PP-g-Si) were prepared. Effect of PP-g-Si on the mechanical properties, crystallization, and melting behavior of PP composites was investigated. Compared with the uncoupled composites, the mechanical properties of T

Study on the surface grafting of polypro

Study on the surface grafting of polypropylene fibers

✍ W. Wang; L. Wang; C. L. Wang; T. X. Sun; H. J. Yu; T. Chen 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB 👁 1 views