SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLES POLYURETHANE CONTAINING LIGHT SENSITIVE SIDE GROUPS

Li-xin Yang; Liang-yan Wang; Zhi-gang Xie; Xiu-li Hu; Yu-bin Huang; Xia-bin Jing

doi:10.3724/SP.J.1105.2013.12122

您当前的位置：

首页 >

文章列表页 >

SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLES POLYURETHANE CONTAINING LIGHT SENSITIVE SIDE GROUPS

Research Article | 更新时间：2021-03-19

- SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLES POLYURETHANE CONTAINING LIGHT SENSITIVE SIDE GROUPS
- Acta Polymerica Sinica Issue 1, Pages: 43-49(2013)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.3724/SP.J.1105.2013.12122
  CLC：
- Published：20 January 2013，
扫描看全文
Li-xin Yang, Liang-yan Wang, Zhi-gang Xie, Xiu-li Hu, Yu-bin Huang, Xia-bin Jing. SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLES POLYURETHANE CONTAINING LIGHT SENSITIVE SIDE GROUPS. [J]. Acta Polymerica Sinica (1):43-49(2013)
DOI：

Li-xin Yang, Liang-yan Wang, Zhi-gang Xie, Xiu-li Hu, Yu-bin Huang, Xia-bin Jing. SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLES POLYURETHANE CONTAINING LIGHT SENSITIVE SIDE GROUPS. [J]. Acta Polymerica Sinica (1):43-49(2013) DOI： 10.3724/SP.J.1105.2013.12122.

摘要

设计合成2-甲基-2-肉桂酰氧甲基-1

3-丙二醇 (MCO)作为扩链剂

并以聚乳酸二醇(PLA diol)为软段

异佛尔酮二异氰酸酯(IPDI)和MCO为硬段制备了一系列侧链含有肉桂基团的可生物降解聚氨酯.结果表明MCO具有较高的反应活性

可满足制备高分子量聚氨酯的要求.聚氨酯结构中的肉桂双键可在紫外光和光引发剂的共同作用下

发生快速的交联反应

短时间内形成交联结构.软段结构相同时

凝胶含量随MCO含量的增加而增加.硬段结构相同时

凝胶含量随软段分子量的增加而减少.适度的交联可提高拉伸强度和形变回复率.

Abstract

2-Methyl-2-cinnamoyloxymethyl-1

3-propanediol (MCO) as a chain extender was prepared.Polylactide diol (PLA diol) as soft segment

isophorone diisocyanate (IPDI) and MCO as hard segment were used to synthesize biodegradable polyurethane (PU) containing light sensitive groups.The properties of the PUs obtained were characterized by nuclear magnetic resonance hydrogen spectrum (1H-NMR)

Fourier transform infrared spectroscopy (FTIR)

gel permeation chromatography (GPC)

differential scanning calorimetry (DSC) and tensile testing.The results showed that MCO had high enough reactivity to obtain the PUs of high molecular weight

the number average molecular weight of PUs ranged from 41.9?103 to 79.0?103.Crosslinking of the PUs was realized by irradiating the PU solution with UV 365 nm light.The time for complete crosslinking of PU in solutions in the absence of light initiator (2-hydroxy-2-phenylacetophenone) was 25 min

but it was only 5 min in the presence of light initiator.The gel content increased with increasing MCO content in PUs when the PUs had the same soft segment; the gel content decreased with increasing soft segment molecular weight when the PUs had the same hard segment.Rational crosslinking contributed to the increase of tensile strength and shape recovery ratio

the shape recovery ratio of PU reached nearly 100%.

关键词

可生物降解聚氨酯交联紫外光

Keywords

Biodegradable polyurethaneCrosslinkingUV

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Crosslinking Kinetics and Application of Chitosan-Genipin Nanogel

Sequenced Quaternized Poly (aryl ether sulfone)-based Anion Exchange Membranes and Their Crosslinking Modification

PREPARATION AND CHARACTERIZATION OF SILICA/PMMA COMPOSITES WITH HIGHLY DISPERSED SILICAGRAFTING AND CROSSLINKING

CHAIN STRUCTURE REGULATION OF CARBON DIOXIDE-PROPYLENE OXIDE COPOLYMERS

Related Author

No data

Related Institution

State Kay Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences

School of Applied Chemistry and Engineering, Univerdity of Science and Technology of China

College of Food Science and Technology, Nanjing Agricultural University

School of Environmental & Biological Engineering, Nanjing University of Science & Technology

Engineering Research Center of Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University

Postal code：100190
Tel：010-62588927 Email：gfzxb@iccas.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05002797号-8 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰