私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:揚(yáng)州大學(xué)化學(xué)化工學(xué)院810信箱
  • 郵編:225002
  • 電話:0514-87975230
  • 傳真:0514-87975244
  • Email:dfwu@yzu.edu.cn
當(dāng)前位置:> 首頁 > 論文著作 > 正文
Functional Biopolyesters Based on Cross-linked Poly(L-malic acid): Network Engineering towards Tailoring Brittle-Ductile Transition and Shape-Memory Performance
作者:Qianru Wanyan, Yaxin Qiu, Wenting Zhang, Hai Yu, Defeng Wu*
關(guān)鍵字:biodegradable polyesters; crosslinking networks; brittle-ductile transition; asynchronous actions; intelligent devices.
論文來源:期刊
具體來源:Polymer
發(fā)表時(shí)間:2021年

Polymer, 2021, 221, 123628.

Crosslinking opens more possibilities of biodegradable poly(L-malic acid) (PLMA) as functional materials, and network structure is key to its mechanical states and final applications. In this work, the diols with various chain lengths, including six types of fatty diols and four types of polyethylene glycols, were used to construct networks in PLMA, aiming at establishing network structure-mechanical state-material function correlations. As the molecular weights of diols increased from 100 to 400, the samples experienced evident transition from high-strength plastic to low-loss rubber, finally to soft elastomer. The strengths and Young''''''''''''''''s moduli varied from 71 MPa to 0.6 MPa and from 2.3 GPa to 2.7 MPa, respectively, accompanied by a broad variation of glass transition temperature (Tg, 50 oC-7 oC). This brittle-ductile transition was revealed in terms of elastoplastic and dielectric relaxations, then. Using the samples with different network structures as components, the actuators with attractive capability to complete asynchronous actions were fabricated. This work proposes promising applications of cross-linked PLMA as functional or smart materials due to its easily-tuned mechanical states and Tg, together with its good antibactierial activity and shape memory effect.

PDF DOWNLOAD:

https://linkinghub.elsevier.com/retrieve/pii/S0032386121002512

主站蜘蛛池模板: 宣恩县| 六安市| 陆丰市| 永胜县| 凤台县| 兴仁县| 石泉县| 高雄市| 南城县| 清远市| 莱西市| 炎陵县| 揭东县| 宜良县| 临高县| 昭平县| 遂平县| 六安市| 镇宁| 石景山区| 余姚市| 兴和县| 文化| 合阳县| 曲水县| 遂溪县| 涟源市| 延吉市| 海宁市| 青铜峡市| 华宁县| 白山市| 若羌县| 临桂县| 嵊泗县| 花莲县| 芦山县| 吉林市| 英吉沙县| 留坝县| 邹平县|