Results 61 to 70 of about 10,080 (195)

Polyolefins-based Crystalline Elastomers

, 2008
The objective of this project is the study of innovative elastomers based on polyolefins that present increased stiffness, with respect to conventional elastomers, thanks to the presence of non-negligible level of crystallinity.
Odda Ruiz de Ballesteros
core  

Biodegradation of selected polyolefins [PDF]

, 2015
W artykule przedstawiono problemy związane z biodegradacją wybranych polimerów z klasy poliolefin. Omówiono mechanizmy abiotycznej fotooksydacji polietylenu, polipropylenu oraz polistyrenu.
Pająk, J., Dzionek, A.
core  

Polyolefinic materials in packaging; prospects and environmental threats: A comprehensive review [PDF]

Polyolefins Journal
The global packaging industry is primarily influenced by polyolefinic materials, such as polyethylene (PE) and polypropylene (PP), which offer a combination of durability, flexibility, and cost-effectiveness.
Anirban Bhar, Akshay Dey, Deepshikha Datta, Oliva Roy, Soumyadeep Routh, Arindam Mandal, Biswajit Kamila   +6 more
doaj   +1 more source

Phosphorous removal from water by polyolefins: effect of Al2O3 addition [PDF]

, 2008
Phosphorus is the main nutrient responsible for eutrophication of aquatic ecosystems, therefore it is important to develop new processes to remove phosphorus that avoid the formation of precipitates.
Oliveira, M., Nogueira, R., Nóbrega, J. M., Machado, A. V., Brito, A. G.   +4 more
core   +1 more source

Entropy Engineering for the Efficient Hydrogenolysis of Waste Polyolefins

Engineering
The chemical upcycling of waste plastics has emerged as a cornerstone of ecological development and the circular economy. However, the high entropy of polymers during chemical conversion severely limits catalytic activity, emphasizing the urgent need to ...
Qianyue Feng, Shengming Li, Feng Jiang, Panpan Xu, Yeping Xie, Mingyu Chu, Zhongyu Li, Weilin Tu, Muhan Cao, Qiao Zhang, Jinxing Chen   +10 more
doaj   +1 more source

Effects of low-dose electron beam irradiation on linear low density polyethylene/ternary copolymer polypropylene polyolefin structure and properties

Fushe yanjiu yu fushe gongyi xuebao
This study investigated the impact of low-dose electron beam irradiation on the structure-property correlation of linear low-density polyethylene (LLDPE), ternary copolymer polypropylene (co-PP), and their blends.
ZHANG Maojiang, WU Yanfu, CUI Kexin, ZHANG Xinwei, WANG Jinghua, DONG Chunlei, GAN Jie, WU Guozhong   +7 more
doaj   +1 more source

Imidation of cyclic anhydrides and modified polyolefins

, 2020
The main focus of the presented bachelor’s thesis is on the reaction pathway that leads to the formation of cyclic imides and utilizing imidation as a way to modify polyolefins.
Šimonek, Michal
core  

Study on the onset mechanism of bio-blister degradation of polyolefin by diatom attachment in seawater

Scientific Reports
It is essential to develop a mechanism for lowering the molecular weight of polyolefins to achieve biodegradation in seawater. In this study, a polypropylene/polylactic acid blend sample was first subjected to photodegradation pretreatment, and it was ...
Hisayuki Nakatani, Shun Narizumi, Seiya Okubo, Suguru Motokucho, Anh Thi Ngoc Dao, Hee-Jin Kim, Mitsuharu Yagi, Yusaku Kyozuka, Shigenobu Miura, Kanth V. Josyula   +9 more
doaj   +1 more source

Scandium-catalyzed copolymerization of myrcene with ethylene and propylene: convenient syntheses of versatile functionalized polyolefins

, 2018
A novel family of myrcene-based polyolefins and functionalized polyolefins was prepared by the copolymerization of myrcene with ethylene and propylene catalyzed by half-sandwich scandium complexes.
Xiaorui Ren, Yang Li, Yunyun Song, Hongran Fu, Fang Guo, Zhaomin Hou   +5 more
core   +1 more source

Deconjugation and cyclization forge tough, recyclable CO

Cell Reports Sustainability
In a recent Chem Circularity article, deconjugated monomer design and post-polymerization backbone editing enable Lin et al. to transform CO 2 and 1,3-butadiene into tough, high-performance cyclopolyester thermoplastics.
Xiuxiu Wang, Menglu Jiang, Shan Tang
doaj   +1 more source