Physical and thermal properties of 8 MeV electron beam irradiated HPMC polymer films

被引：27
|
作者：
Sangappa [1 ]
Demappa, T. [2 ]
Mahadevaiah [2 ]
Ganesha, S. [3 ]
Divakara, S. [4 ]
Pattabi, Manjunath [5 ]
Somashekar, R. [6 ]
机构：
[1] Mangalore Univ, Dept Studies Phys, Mangalagangothri 574199, Karnataka, India
[2] Univ Mysore, Sir MV PG Ctr, Dept Polymer Sci, Mandya 575007, India
[3] Mangalore Univ, Microtron Ctr, Mangalagangothri 574199, Karnataka, India
[4] E Point Coll Engn & Technol, Dept Phys, Bangalore 560049, Karnataka, India
[5] Mangalore Univ, Dept Mat Sci, Mangalagangothri 574199, Karnataka, India
[6] Univ Mysore, Dept Studies Phys, Mysore 570006, Karnataka, India
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2008年 / 266卷 / 18期
关键词：
Irradiation; Crystallinity; Microstructural parameters;
D O I：
10.1016/j.nimb.2008.06.021
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Microstructural modification in hydroxypropyl methylcellulose (HPMC) polymer films induced by electron irradiation is studied. Irradiation was performed in air at room temperature using a 8 MeV electron accelerator at doses of 25, 50, 75 and 100 kGy. Irradiation can be used to crosslink or degrade the desired component or to fix the polymer morphology. Changes in microstructural parameters, crystallinity and thermal properties in virgin and irradiated HPMC films have been studied using wide angle X-ray scattering data and differential scanning calorimetry. The heat of fusion and the degree of crystallinity are found to be highest for unirradiated HPMC and the crystallite size is larger in virgin HPMC films. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3975 / 3980
页数：6
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