Network parameters study of novel P(HEMA-co-NEVER) copolymeric hydrogels

Zhi Hui Lin; Wen Hui Wu; Jian Quan Wang; Xin Jin

Network parameters study of novel P(HEMA-co-NEVER) copolymeric hydrogels

Zhi Hui Lin^*
, Wen Hui Wu
, Jian Quan Wang
, Xin Jin

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin (NEVER) and hydrophilic-2-hydroxyethyl methacrylate (HEMA) were synthesized by bulk copolymerization. The effects of NEVER content and temperature on network parameters such as effective crosslink density (v_e), molar mass between crosslinks (M_c) and polymer-water interaction parameter (x) of hydrogels were studied on the basis of swelling and tensile properties. The increase of NEVER content can enhance hydrophobic bonding within hydrogel, leading to the decrease in equilibrium water content (EWC) and the increase in volume fraction of polymer in hydrogel (Φ₂) and tensile strength, Young's modulus, v_e and x values of hydrogels also increases and M_c decreases. When the temperature is increased from 273 K to 343 K, the hydrogel H/N7 undergoes decreasing in EWC and increasing in Φ₂ and X values. The thermodynamic analysis indicated that the swelling process is an exothermic process.

Original language	English
Pages (from-to)	132-135
Number of pages	4
Journal	Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
Volume	23
Issue number	4
Publication status	Published - Jul 2007

Keywords

Effective crosslinking density
Hydrogels
Interaction parameter
Swelling behavior
Tensile properties

Cite this

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title = "Network parameters study of novel P(HEMA-co-NEVER) copolymeric hydrogels",

abstract = "A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin (NEVER) and hydrophilic-2-hydroxyethyl methacrylate (HEMA) were synthesized by bulk copolymerization. The effects of NEVER content and temperature on network parameters such as effective crosslink density (ve), molar mass between crosslinks (Mc) and polymer-water interaction parameter (x) of hydrogels were studied on the basis of swelling and tensile properties. The increase of NEVER content can enhance hydrophobic bonding within hydrogel, leading to the decrease in equilibrium water content (EWC) and the increase in volume fraction of polymer in hydrogel (Φ2) and tensile strength, Young's modulus, ve and x values of hydrogels also increases and Mc decreases. When the temperature is increased from 273 K to 343 K, the hydrogel H/N7 undergoes decreasing in EWC and increasing in Φ2 and X values. The thermodynamic analysis indicated that the swelling process is an exothermic process.",

keywords = "Effective crosslinking density, Hydrogels, Interaction parameter, Swelling behavior, Tensile properties",

author = "Lin, \{Zhi Hui\} and Wu, \{Wen Hui\} and Wang, \{Jian Quan\} and Xin Jin",

year = "2007",

month = jul,

language = "English",

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pages = "132--135",

journal = "Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering",

issn = "1000-7555",

publisher = "Chengdu University of Science and Technology",

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TY - JOUR

T1 - Network parameters study of novel P(HEMA-co-NEVER) copolymeric hydrogels

AU - Lin, Zhi Hui

AU - Wu, Wen Hui

AU - Wang, Jian Quan

AU - Jin, Xin

PY - 2007/7

Y1 - 2007/7

N2 - A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin (NEVER) and hydrophilic-2-hydroxyethyl methacrylate (HEMA) were synthesized by bulk copolymerization. The effects of NEVER content and temperature on network parameters such as effective crosslink density (ve), molar mass between crosslinks (Mc) and polymer-water interaction parameter (x) of hydrogels were studied on the basis of swelling and tensile properties. The increase of NEVER content can enhance hydrophobic bonding within hydrogel, leading to the decrease in equilibrium water content (EWC) and the increase in volume fraction of polymer in hydrogel (Φ2) and tensile strength, Young's modulus, ve and x values of hydrogels also increases and Mc decreases. When the temperature is increased from 273 K to 343 K, the hydrogel H/N7 undergoes decreasing in EWC and increasing in Φ2 and X values. The thermodynamic analysis indicated that the swelling process is an exothermic process.

AB - A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin (NEVER) and hydrophilic-2-hydroxyethyl methacrylate (HEMA) were synthesized by bulk copolymerization. The effects of NEVER content and temperature on network parameters such as effective crosslink density (ve), molar mass between crosslinks (Mc) and polymer-water interaction parameter (x) of hydrogels were studied on the basis of swelling and tensile properties. The increase of NEVER content can enhance hydrophobic bonding within hydrogel, leading to the decrease in equilibrium water content (EWC) and the increase in volume fraction of polymer in hydrogel (Φ2) and tensile strength, Young's modulus, ve and x values of hydrogels also increases and Mc decreases. When the temperature is increased from 273 K to 343 K, the hydrogel H/N7 undergoes decreasing in EWC and increasing in Φ2 and X values. The thermodynamic analysis indicated that the swelling process is an exothermic process.

KW - Effective crosslinking density

KW - Hydrogels

KW - Interaction parameter

KW - Swelling behavior

KW - Tensile properties

UR - https://www.scopus.com/pages/publications/34548276941

M3 - Article

AN - SCOPUS:34548276941

SN - 1000-7555

VL - 23

SP - 132

EP - 135

JO - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

JF - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

IS - 4

ER -

Network parameters study of novel P(HEMA-co-NEVER) copolymeric hydrogels

Abstract

Keywords

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