New understanding on the reaction pathways of the polyacrylonitrile copolymer fiber pre-oxidation: online tracking by two-dimensional correlation FTIR spectroscopy

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4397-4409 ◽  
Author(s):  
Jing Zhao ◽  
Jihai Zhang ◽  
Tao Zhou ◽  
Xifei Liu ◽  
Qiang Yuan ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Ftir Spectroscopy ◽  
Reaction Pathways ◽  
Two Dimensional ◽  
Online Tracking ◽  
Polyacrylonitrile Copolymer ◽  
2D Correlation Analysis

FTIR spectroscopy in combination with scaling-MW2D and 2D correlation analysis is used to study the reaction pathways of polyacrylonitrile copolymer fibers pre-oxidation.

scholarly journals Detailed molecular movements during poly(l-lactic acid) cold-crystallization investigated by FTIR spectroscopy combined with two-dimensional correlation analysis

RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 47017-47028 ◽  
Author(s):  
Bai Xue ◽  
Lan Xie ◽  
Junhua Zhang
Keyword(s):  
Lactic Acid ◽  
Correlation Analysis ◽  
Ftir Spectroscopy ◽  
Cold Crystallization ◽  
Two Dimensional ◽  
Sequential Order

The sequential order of the groups' movement and the microdynamics mechanism of PLLA cold-crystallization are successfully investigated.

Multiple-perturbation two-dimensional (2D) correlation analysis for spectroscopic imaging data

2014 ◽  
Vol 1069 ◽  
pp. 176-182 ◽  
Author(s):  
Hideyuki Shinzawa ◽  
Kosuke Hashimoto ◽  
Hidetoshi Sato ◽  
Wataru Kanematsu ◽  
Isao Noda
Keyword(s):  
Correlation Analysis ◽  
Spectroscopic Imaging ◽  
Two Dimensional ◽  
Imaging Data ◽  
2D Correlation Analysis

Microdynamic changes of moisture-induced crystallization of amorphous calcium carbonate revealed via in situ FTIR spectroscopy

2019 ◽  
Vol 21 (39) ◽  
pp. 21882-21889 ◽  
Author(s):  
Meng Cheng ◽  
Shengtong Sun ◽  
Peiyi Wu
Keyword(s):  
Calcium Carbonate ◽  
Correlation Analysis ◽  
Ftir Spectroscopy ◽  
Two Dimensional ◽  
In Situ Ftir ◽  
Amorphous Calcium Carbonate ◽  
In Situ Ftir Spectroscopy ◽  
Induced Crystallization

A microdynamic mechanism of moisture-induced ACC crystallization involving three consecutive conversion stages is elucidated via in situ FTIR spectroscopy and two-dimensional correlation analysis.

Two-Dimensional (2D) Correlation Analysis and the Search for Intermediates: A Strictly Mathematical Approach to an Important Mechanistic Question

ACS Catalysis ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 3588-3599 ◽  
Author(s):  
Qisong Xu ◽  
LiangFeng Guo ◽  
Tung Nguyen Dinh ◽  
Angie Cheong ◽  
Marc Garland
Keyword(s):  
Correlation Analysis ◽  
Mathematical Approach ◽  
Two Dimensional ◽  
2D Correlation Analysis

scholarly journals New Approach to Generalized Two-Dimensional Correlation Spectroscopy. 1: Combination of Principal Component Analysis and Two-Dimensional Correlation Spectroscopy

2002 ◽  
Vol 56 (12) ◽  
pp. 1562-1567 ◽  
Author(s):  
Young Mee Jung ◽  
Hyeon Suk Shin ◽  
Seung Bin Kim ◽  
Isao Noda
Keyword(s):  
Principal Component Analysis ◽  
Correlation Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Correlation Spectroscopy ◽  
Data Matrix ◽  
Two Dimensional ◽  
Noise Component ◽  
Reconstructed Data ◽  
2D Correlation Analysis

The direct combination of chemometrics and two-dimensional (2D) correlation spectroscopy is considered. The use of a reconstructed data matrix based on the significant scores and loading vectors obtained from the principal component analysis (PCA) of raw spectral data is proposed as a method to improve the data quality for 2D correlation analysis. The synthetic noisy spectra were analyzed to explore the novel possibility of the use of PCA-reconstructed spectra, which are highly noise suppressed. 2D correlation analysis of this reconstructed data matrix, instead of the raw data matrix, can significantly reduce the contribution of the noise component to the resulting 2D correlation spectra.

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