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Citation: YU Feng-Yuan, XIAO Han-Wen, XU Bing, HUANG Shi-Qiang. Modification of LDPE by Grafting[J]. Chinese Journal of Applied Chemistry, ;2005, 22(7): 796-799. shu

Modification of LDPE by Grafting

1.
Faculty of Chemistry and Materials Science, Hubei University, Wuhan 430062

Corresponding author: HUANG Shi-Qiang,
Received Date: 20 September 2004
Available Online: 20 December 2004
Fund Project: 湖北省科技重点攻关项目(2001AA101C34) (2001AA101C34)

Via the melt-grafted reaction of low density polyethylene (LDPE) with multimonomer,we successfully introduced Glycidyl methylacrylate and Styrene onto the macromolecular chain of LDPE.The grafting degree of gLDPE reached to 3% approximately.Two analytic methods were employed to study the different processes of the non-isothermal crystallization for LDPE and gLDPE.Crystal of the grafted LDPE was observed by means of a polarized optical microscope.The investigation showed that compared to that of LDPE,the crysallization temperature (T_c) of gLDPE has shifted to higher temperature slightly and the range of crystallization temperature has become wider.The exponent n of Avrami equation was about 4,indicating that gLDPE and LDPE have a similar model of non-isothermal crystallization.
- LDPE,
- GMA,
- non-isothermal crystallization
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