Lightweight, Strong and High Heat-Resistant Poly(lactide acid) Foams via Microcellular Injection Molding with Self-Assembly Nucleating AgentChinese Journal of Polymer Science - - 2024
Xiao-Hu Bing, Wen-Yu Ma, Ming-Hui Wu, Peng Gao, Xiao Zhou, Hai-Bin Luo, Long Wang, Wen-Ge Zheng
Poly(lactide acid) (PLA) foams have shown considerable promise as eco-friendly alternatives to nondegradable plastic foams, such as polystyrene (PS) foams. Nevertheless, PLA foam typically suffers from low heat-resistance and poor cellular structure stemming from its inherent slow crystallization rate and low melt strength. In this study, a high-performance PLA foam with well-defined cell morpholo...... hiện toàn bộ
Response of bi-disperse polyelectrolyte brushes to external electric fields — A numerical self-consistent field theory studyChinese Journal of Polymer Science - Tập 35 - Trang 98-107 - 2016
Cong Kang, Shuang-liang Zhao, Chao-hui Tong
The self-consistent field theory has been employed to numerically study the response of bi-disperse flexible polyelectrolyte (PE) brushes grafted on an electrode to electric fields generated by opposite surface charges on the PE-grafted electrode and a second parallel electrode. The numerical study reveals that, under a positive external electric field, the shorter and negatively charged PE chains...... hiện toàn bộ
Structural Evolution of PGA Nascent Fiber during Single Low-Temperature and Segmented High-Temperature Hot StretchingChinese Journal of Polymer Science - Tập 41 Số 7 - Trang 1078-1092 - 2023
Miao, Yu-Shuang, Cui, Hua-Shuai, Guo, Jin, Zhu, Jin-Tang, Li, Yi-Guo, Wang, Zong-Bao
Polyglycolide (PGA) fibers applied as surgical sutures strongly depend on their microstructure. The structural evolution of PGA nascent fibers during single low-temperature stretching and segmented high-temperature stretching was analyzed based on a combination of in situ WAXD/SAXS and DSC measurements. The results indicated that the hot stretching was conducive to the crystal perfection and the l...... hiện toàn bộ
Force-Extension Curve of an Entangled Polymer Chain: A Superspace ApproachChinese Journal of Polymer Science - Tập 39 - Trang 1345-1350 - 2021
Huan Gong, Jian-Feng Li, Hong-Dong Zhang, An-Chang Shi
The statistical mechanics of an ideal polymer chain entangled with static topological constraints is studied using a superspace approach, in which the probability distribution of the polymer is obtained as solutions of the Fokker-Planck equation in a superspace with an inner structure characterized by the n-generator free group. The theory predicts that the force-extension curve of the polymer und...... hiện toàn bộ
Thermal, mechanical and electrical studies of novel shape memory polyurethane/polyaniline blendsChinese Journal of Polymer Science - Tập 33 - Trang 1313-1324 - 2015
Rabia Sattar, Ayesha Kausar, Muhammad Siddiq
Shape memory polymer (SMP) blends based on polyurethane (PU) and polyaniline (PANI) were prepared via chemical in situ polymerization process. The thermal, mechanical, electrical and shape memory properties were investigated. The structural characterization and morphology of the polymer blends were inspected by Fourier transform infrared (FTIR) and scanning electron microscopy (SEM), respectively....... hiện toàn bộ