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Synthesis of di(4‐hydroxyl benzophenone) sebacate and its usage as initiator in the photocrosslinking of polyethylene
Author(s) -
Wu Qianghua,
Qu Baojun
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10791
Subject(s) - photoinitiator , benzophenone , fourier transform infrared spectroscopy , polyethylene , polymer chemistry , materials science , photopolymer , chemistry , chemical engineering , polymer , polymerization , composite material , monomer , engineering
A new benzophenone (BP) derivative with a long carbon chain and two chromophoric groups—di (4‐hydroxyl benzophenone) sebacate (BP‐S) used as a photoinitiator in the photocrosslinking of polyethylene (PE) has been synthesized and characterized by ultraviolet (UV) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, and elemental analysis. The kinetic characteristics of BP‐S photoinitiated crosslinking of PE in the melt and its compatibility with PE resin have been examined by gel content measurement and thermal migration experiment. The results show that BP‐S is an excellent photoinitiator, which has better compatibility, less volatility, higher photoinitiating efficiency, and longer storage time than BP itself. It is promising for industrial applications of the photocrosslinking of polyolefins. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1581–1586, 2002;