Preparation and physical properties of novel nonionic surfactants and their grafting copolymers with linear low density polyethylene (LLDPE)

doi:10.1002/polb.20325

CORC > 化学研究所 > 中国科学院化学研究所

	Preparation and physical properties of novel nonionic surfactants and their grafting copolymers with linear low density polyethylene (LLDPE)
	Xin, ZR ; Ding, YT ; Yin, JH ; Ke, Z ; Xu, XD ; Gao, Y ; Costa, G
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2005-02-01
卷号	43 期号:3 页码:314-322
关键词	Nonionic Surfactant Linear Low Density Polyethylene Reactive Extrusion Poly(Ethylene Oxide) Acrylate Functionalization Of Polymers Graft Copolymers Reactive Extrusion
ISSN号	0887-6266
DOI	10.1002/polb.20325
英文摘要	Three nonionic surfactants, S1, S2, and S3 and their acrylates, AS1, AS2, and AS3, were synthesized with poly(ethylene oxide) and diols such as glycol, 1,6-hexanediol, and 1,10-decanediol as the main starting materials. Their chemical structures were characterized by means of Fourier transform infrared (FTIR) spectroscopy and H-1 NMR. The surface activity and surface tension (gamma) of S1, S2, and S3 were evaluated by a drop weight method. The surface tension was found to decrease with the length of the lipophilic spacer in the molecular chains (gamma(S1) < gamma(S2) <(S3)). AS1, AS2, and AS3 were adopted as functionalizing monomers and grafted onto linear low density polyethylene (LLDPE) with a melt reactive extrusion procedure. The graft degrees of LLDPE were determined by FTIR. Three grafted LLDPE samples with grafting degrees of 1.16% (AS1), 0.82% (AS2), and 0.71% (AS3) were prepared. Thermal and rheological properties of grafted LLDPE samples were studied with differential scanning calorimetry and a rotational rheometer. Crystallization rates of grafted LLDPE were faster than that of plain LLDPE at a given crystallization temperature because graft chains could act as nucleating agents. The isothermal crystallization behavior of grafted LLDPE was in accordance with the Avrami model only in the first stage, and deviated from the model with an increase in the crystallization time. Shear thinning at high shear rates and shear thickening at low shear rates were observed for the grafted LLDPE. (C) 2004 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000226319500008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/56843]
专题	中国科学院化学研究所
通讯作者	Yin, JH
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Yan Tai Univ, Yan Tai 264005, Peoples R China 3.CNR, Ist Studio Macromol, I-16149 Genoa, Italy
推荐引用方式 GB/T 7714	Xin, ZR,Ding, YT,Yin, JH,et al. Preparation and physical properties of novel nonionic surfactants and their grafting copolymers with linear low density polyethylene (LLDPE)[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2005,43(3):314-322.
APA	Xin, ZR.,Ding, YT.,Yin, JH.,Ke, Z.,Xu, XD.,...&Costa, G.(2005).Preparation and physical properties of novel nonionic surfactants and their grafting copolymers with linear low density polyethylene (LLDPE).JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,43(3),314-322.
MLA	Xin, ZR,et al."Preparation and physical properties of novel nonionic surfactants and their grafting copolymers with linear low density polyethylene (LLDPE)".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 43.3(2005):314-322.