Effect of the addition of diurethane dimethacrylate on the chemical and mechanical properties of tBA-PEGDMA acrylate based shape memory polymer network

被引：12
|
作者：
Antony, G. Jerald Maria [1 ]
Raja, S. [1 ]
Aruna, S. T. [2 ]
Jarali, Chetan S. [1 ]
机构：
[1] CSIR, Natl Aerosp Labs, Struct Technol Div, HAL Airport Rd, Bangalore 560017, Karnataka, India
[2] CSIR, Natl Aerosp Labs, Surface Engn Div, HAL Airport Rd, Bangalore 560017, Karnataka, India
来源：
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2020年 / 110卷
关键词：
Diurethane dimethacrylate; Young 's modulus; Transparent; POLY(METHYL METHACRYLATE);
D O I：
10.1016/j.jmbbm.2020.103951
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
There is a great demand for the synthesis of acrylate based thermoset shape memory polymer (SMP) associated with one monomer and one crosslinker such as tert-butyl acrylate (t-BA) with poly (ethylene glycol) dimethacrylate (PEGDMA). The present work describes the synthesis of a new thermoset SMP wherein a second monomer such as diurethane dimethacrylate (DUDMA) has been added to the existing tBA + PEGDMA SMP matrix. The synthesized thermoset shape memory polymer exhibited a glass transition temperature (Tg) of 55 degrees C, higher Young's Modulus of 3.23 GPa, transmittance of 95% and 100% shape recovery. The SMP exhibited response to both thermal and chemical stimuli. The shape recovery rate of the SMP network is 20 s compared to 24 s observed for SMP based on tBA + PEGDMA. The obtained SMP is very transparent and possesses higher stiffness (8 MPa) and hence may be suitable for biomedical shape memory lens and orthopedic application.
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页数：11
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