天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

ChemicalBook >> journal list >> Applied Sciences-Basel >>article
Applied Sciences-Basel

Applied Sciences-Basel

IF: 2.5
Download PDF

Synthesis and Properties of Shape Memory Poly(γ-Benzyl-l-Glutamate)-b-Poly(Propylene Glycol)-b-Poly(γ-Benzyl-l-Glutamate)

Published:4 December 2017 DOI: 10.3390/APP7121258
Lin Gu,?Yuanzhang Jiang,?Jinlian Hu

Abstract

Shape memory polymers (SMPs) have attracted much attention as an important class of stimuli-responsive materials for biomedical applications. For SMP-based biomaterials, in addition to suitable shape recovery performances, their mechanical properties, biodegradability, biocompatibility, and sterilizability needs to be considered. Polypeptides can satisfy the requirements outlined above. However, there are few reports on shape memory polypeptides. In this paper, shape memory poly(γ-benzyl-l-glutamate) (PBLG-PPG-PBLG) was synthesized by ring-opening polymerization of γ-benzyl-l-glutamate-N-carboxyanhydrides (BLG-NCA) with poly(propylene glycol) bis(2-aminopropyl ether) as the macroinitiator. 1H Nuclear Magnetic Resonance (NMR) and Fourier-Transform Infrared Spectroscopy (FTIR) were used to characterize the structure of the obtained PBLG-PPG-PBLG. The FTIR analysis showed that PBLG-PPG-PBLG has α-helical and β-sheet structures. PBLG-PPG-PBLG has good shape memory properties, its shape recovery time is less than 120 s, and its shape recovery rate is 100%. In this study, we reported a simple synthetic method to obtain intelligent polypeptide materials, which will be used in many biomedical applications.

Substances (2)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Poly(propylene glycol) 25322-69-4 CH4 375 suppliers $22.65-$503.62
POLY-Γ-BENZYL-L-GLUTAMATE - Inquiry

Similar articles

IF:14.4

Poly-L-cysteine

Neural Regeneration Research Arieh Berger, Junzo Noguchi,etc Published: 1 September 1956
IF:2.2

Novel crosslinked thermoresponsive hydrogels with controlled poly(ethylene glycol)—poly(propylene glycol) multiblock copolymer structure

Neural Regeneration Research Alina Anghelache, Mircea Teodorescu,etc Published: 30 November 2013
IF:5.1

The Impact of Molecular Weight on the Behavior of Poly(propylene glycol) Derivatives Confined within Alumina Templates

Neural Regeneration Research Magdalena Tarnacka*, Agnieszka Talik,etc Published: 1 May 2019