## Abstract Various polyurethane‐based SMPUs were synthesized using five types of polyols as soft segments and two different diisocyanates as hard segments. The effects of diisocyanate concentration on material properties such as crystallinity, transition temperature, shape‐memory effect and tensil
Tailored (Meth)Acrylate Shape-Memory Polymer Networks for Ophthalmic Applications
✍ Scribed by Li Song; Wang Hu; Guojie Wang; Guoguang Niu; Hongbin Zhang; Hui Cao; Kaijie Wang; Huai Yang; Siquan Zhu
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 458 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1616-5187
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✦ Synopsis
Abstract
The unique features of shape‐memory polymers enables their use in minimally invasive surgical procedures with a compact starting material switching over to a voluminous structure in vivo. In this work, a series of transparent, thermoset (meth)acrylate shape‐memory polymer networks with tailored thermomechanics have been synthesized and evaluated. Fundamental trends were established for the effect of the crosslinker content and crosslinker molecular weight on glass transition temperature, rubbery modulus and shape‐recovery behavior, and the results are intended to help with future shape‐memory device design. The prepared (meth)acrylate networks with high transparency and favorable biocompatibility are presented as a promising shape‐memory ophthalmic biomaterial.
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