Premium
Preparation and properties of polymerizable 1,8‐naphthalimide fluorescent dye grafted linear low‐density polyethylene
Author(s) -
Lin Zesen,
Zhang Jianfu,
Ma Haifeng,
Yao Zhanhai
Publication year - 2015
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.42172
Subject(s) - linear low density polyethylene , materials science , crystallization , polymer chemistry , grafting , chemical engineering , monomer , polyethylene , polymer , composite material , engineering
Light converting greenhouse films are novel plastic films for agriculture. In this study, 4‐methoxy‐N‐allyl‐1,8‐naphthalimide (MOANI) was grafted onto linear low‐density polyethylenes (LLDPE‐g‐MOANI) by melt reactive mixing. The effects of monomer concentration, chamber temperature, and reaction time on grafting degree were systematically studied. Evidence of the grafting reaction was determined by 1 HNMR, FTIR, UV–Vis, and fluorescence spectrometry. Dynamic rheological properties, isothermal crystallization kinetics, surface morphologies of LLDPE, LLDPE‐g‐MOANI, and blends of LLDPE and MOANI (LLDPE/MOANI) were also analyzed. In addition, mechanical and fluorescent properties of unpurified LLDPE‐g‐MOANI films were further studied after the UV condensation weathering and acceleration migration test, respectively. We demonstrated that the cross‐linking of LLDPE could be inhibited effectively by the graft of MOANI; the grafted MOANI acted as a nucleation agent to accelerate crystallization; the grafted MOANI effectively inhibited the aging process of LLDPE and the migration of free MOANI to the surface of the unpurified LLDPE‐g‐MOANI film. The modified LLDPE showed the potential application in long‐term light converting films. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42172.