线性聚乙烯标准参考物质1475的特性。II. 用红外分光光度法测定总甲基含量。
The Characterization of Linear Polyethylene SRM 1475. II. Determination of Total Methyl Content by Infrared Spectrophotometry.
作者信息
Brown James E
机构信息
Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
出版信息
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):141-142. doi: 10.6028/jres.076A.015.
Abstract
An ASTM method was used to determine the methyl content of linear polyethylene SRM 1475 by measuring the absorbance at 1378 cm (7.25 nm) of methyl groups on compensated infrared spectra. The methyl content of this polymer was found to be 0.15 methyls per 100 carbon atoms. Considering the methyls to be polymer end groups, the number average molecular weight computed approximates that determined by gel permeation chromatography within the experimental error. These values indicate that the polymer is essentially free of branching.
摘要
采用美国材料与试验协会（ASTM）的一种方法，通过测量补偿红外光谱上甲基在1378厘米（7.25纳米）处的吸光度来测定线性聚乙烯标准参考物质1475的甲基含量。发现该聚合物的甲基含量为每100个碳原子含0.15个甲基。将甲基视为聚合物端基，计算得到的数均分子量在实验误差范围内近似于凝胶渗透色谱法测定的值。这些数值表明该聚合物基本无支化。
相似文献
1
The Characterization of Linear Polyethylene SRM 1475. II. Determination of Total Methyl Content by Infrared Spectrophotometry.线性聚乙烯标准参考物质1475的特性。II. 用红外分光光度法测定总甲基含量。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):141-142. doi: 10.6028/jres.076A.015.
2
The Characterization of Linear Polyethylene SRM 1475. X. Gel Permeation Chromatography.线性聚乙烯标准参考物质1475的特性。X. 凝胶渗透色谱法。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):163-170. doi: 10.6028/jres.076A.023.
3
The Characterization of Linear Polyethylene SRM 1475. III. Density Determination.线性聚乙烯标准参考物质1475的特性。III. 密度测定。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):143-144. doi: 10.6028/jres.076A.016.
4
The Characterization of Linear Polyethylene SRM 1475. VII. Differential Refractive Index of Polyethylene Solutions.线性聚乙烯标准参考物质1475的特性。VII. 聚乙烯溶液的示差折光率。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):151-155. doi: 10.6028/jres.076A.020.
5
The Characterization of Linear Polyethylene SRM's 1482, 1483, and 1484. II. Number-Average Molecular Weights by Membrane Osmometry.线性聚乙烯标准参考物质1482、1483和1484的特性。II. 用膜渗透压法测定数均分子量
J Res Natl Bur Stand (1977). 1978 Mar-Apr;83(2):179-184. doi: 10.6028/jres.083.011.
6
The Characterization of Linear Polyethylene SRM 1475. IX. Number Average Molecular Weight of Fractions by Membrane Osmometry.线性聚乙烯标准参考物质1475的特性。IX. 用膜渗透压法测定级分的数均分子量。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):161-162. doi: 10.6028/jres.076A.022.
7
The Characterization of Linear Polyethylene SRM's 1482, 1483, and 1484 III. Weight-Average Molecular Weights by Light Scattering.线性聚乙烯标准参考物质1482、1483和1484的特性 III. 通过光散射法测定重均分子量
J Res Natl Bur Stand (1977). 1978 Mar-Apr;83(2):185-193. doi: 10.6028/jres.083.012.
8
The Characterization of Linear Polyethylene SRM's 1482, 1483, and 1484. IV. Limiting Viscosity Numbers by Capillary Viscometry.线性聚乙烯标准参考物质1482、1483和1484的特性。IV. 用毛细管粘度法测定特性粘数。
J Res Natl Bur Stand (1977). 1978 Mar-Apr;83(2):195-201. doi: 10.6028/jres.083.013.
9
Determination of trans unsaturation by infrared spectrophotometry and determination of fatty acid composition of partially hydrogenated vegetable oils and animal fats by gas chromatography/infrared spectrophotometry: collaborative study.用红外分光光度法测定反式不饱和度以及用气相色谱法/红外分光光度法测定部分氢化植物油和动物脂肪的脂肪酸组成：协同研究
J AOAC Int. 1995 May-Jun;78(3):783-802.
10
Validation of a protocol based on Raman and infrared spectroscopies to nondestructively estimate the oxidative degradation of UHMWPE used in total joint arthroplasty.基于拉曼和红外光谱法的非破坏性评估全髋关节置换用超高分子量聚乙烯氧化降解的协议验证。
Acta Biomater. 2016 Jul 1;38:168-78. doi: 10.1016/j.actbio.2016.04.040. Epub 2016 Apr 27.
引用本文的文献
1
Tandem Heterogeneous Catalysis for Polyethylene Depolymerization via an Olefin-Intermediate Process.通过烯烃中间体过程进行聚乙烯解聚的串联多相催化。
ACS Sustain Chem Eng. 2021 Jan 8;9(2):623-628. doi: 10.1021/acssuschemeng.0c07612. eCollection 2021 Jan 18.
2
The Characterization of Linear Polyethylene SRM 1475: I. Introduction.线性聚乙烯标准参考物质1475的特性：I. 引言。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):137-140. doi: 10.6028/jres.076A.014.
本文引用的文献
1
The Characterization of Linear Polyethylene SRM 1475. X. Gel Permeation Chromatography.线性聚乙烯标准参考物质1475的特性。X. 凝胶渗透色谱法。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):163-170. doi: 10.6028/jres.076A.023.
2
The Characterization of Linear Polyethylene SRM 1475. III. Density Determination.线性聚乙烯标准参考物质1475的特性。III. 密度测定。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):143-144. doi: 10.6028/jres.076A.016.
3
The Characterization of Linear Polyethylene SRM 1475: I. Introduction.线性聚乙烯标准参考物质1475的特性：I. 引言。
J Res Natl Bur Stand A Phys Chem. 1972 Mar-Apr;76A(2):137-140. doi: 10.6028/jres.076A.014.
Zotero 插件