Preparation and Properties of Chlorinated Poly（Propylene Carbonate）/ Poly（Butylene Succinate） Blends Modified with Epoxy Chain Extender ADR-4468

doi:10.19894/j.issn.1000-0518.240360

Chinese Journal of Applied Chemistry ›› 2025, Vol. 42 ›› Issue (2): 201-211.DOI: 10.19894/j.issn.1000-0518.240360

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Preparation and Properties of Chlorinated Poly（Propylene Carbonate）/ Poly（Butylene Succinate） Blends Modified with Epoxy Chain Extender ADR-4468

Wen-Qiang MAO¹^,², Jia-Peng LI¹^,², Dong-Dong WANG¹^,², Yan-Xiong PAN¹, Xiang-Ling JI¹^,²(), Wei JIANG¹^,²^,³()

^1.State Key Laboratory of Polymer Physics and Chemistry，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China
^2.School of Applied Chemistry and Engineering，University of Science and Technology of China，Hefei 230026，China
^3.College of Materials Science and Engineering，Wuhan Textile University，Wuhan 430200，China

Received:2024-11-08 Accepted:2025-01-14 Published:2025-02-01 Online:2025-03-14
Contact: Xiang-Ling JI,Wei JIANG
About author:weijiang@wtu.edu.cn
xlji@ciac.ac.cn；
Supported by:
the National Natural Science Foundation of China(52073276);Changchun Science and Technology Development Program(21ZY07);the Innovation and Entrepreneurship Talent Project of Jilin Province

Abstract

Abstract:

Chlorinated poly（propylene carbonate）/poly（butylene succinate）（CPPC/PBS） blends were modified with ADR-4468， and a series of CPPC/PBS/ADR blends were prepared by melt blending method. The effects of the mass percentage of ADR-4468 （0%~3.5%） on the structure， thermal properties， compatibility， rheological properties， mechanical properties and adhesive properties of the CPPC/PBS/ADR blends were investigated. The results of Fourier transform infrared spectroscopy （FT-IR） and gel permeation chromatography （GPC） showed that the epoxy groups of ADR-4468 can react with the end groups of the two polymers to form chain extension products. The results of dynamic mechanical properties showed that the reactive compatibilization improved the compatibility between CPPC and PBS. Thermal properties showed that the glass transition temperature （T_g，CPPC） and thermal decomposition temperature （T_d5%） of the blends with incorporation of 3.5% ADR were increased by 8.1 and 28.7 ℃， respectively， compared with those of the CPPC/PBS blends. The results of rheological properties showed that the incorporation of ADR-4468 can effectively improve the storage modulus （G'）， loss modulus （G″） and complex viscosity （|η^*|） of the CPPC/PBS/ADR blends. When the mass percentage of ADR-4468 was 3.5%， the tensile strength and Young's modulus of CPPC/PBS/ADR blends were 37.7 and 723.5 MPa， respectively， which were 123% and 68% higher than those of CPPC/PBS blends. The lap shear strength of CPPC/PBS/ADR blends on stainless steel increased first and then decreased， with a maximum value of 4.83 MPa， which was 53% higher than that of CPPC/PBS blends. In addition， the CPPC/PBS/ADR （80/20/1.5） blend has good adaptability on different substrates. Therefore， the CPPC/PBS/ADR blends have good thermal stability， mechanical properties and adhesive properties， and have potential applications in the field of environmentally friendly hot melt adhesives.

Key words: Chlorinated poly（propylene carbonate）, Poly（butylene succinate）, Chain extender, Blending modification, Adhesive properties

CLC Number:

O631

Wen-Qiang MAO, Jia-Peng LI, Dong-Dong WANG, Yan-Xiong PAN, Xiang-Ling JI, Wei JIANG. Preparation and Properties of Chlorinated Poly（Propylene Carbonate）/ Poly（Butylene Succinate） Blends Modified with Epoxy Chain Extender ADR-4468[J]. Chinese Journal of Applied Chemistry, 2025, 42(2): 201-211.

Figures/Tables 13

Fig.1 The possible chain extension reaction among CPPC， PBS and ADR

Fig.2 FT-IR spectra of CPPC， PBS， ADR and CPPC/PBS/ADR blends

Table 1 Relative molecular mass and relative molecular mass distribution of CPPC/PBS/ADR blends

CPPC/PBS/ADR	10^-4×M_n	10^-4×M_w	PDI
80/20/0	3.1	6.8	2.2
80/20/0.5	4.4	9.0	2.0
80/20/1	4.9	10.5	2.1
80/20/1.5	5.5	11.4	2.1
80/20/2.5	6.1	12.0	2.0
80/20/3.5	6.3	12.0	1.9

Fig.3 DSC curves of CPPC/PBS/ADR blends in the second heating

Table 2 Thermal properties of CPPC/PBS/ADR blends

CPPC/PBS/ADR	T_g，CPPC/℃	T_m/℃	ΔH_m/（J·g^-1）	Χ_c/%
80/20/0	24.4	111.3	20.9	52.3
80/20/0.5	29.4	112.9	18.2	45.5
80/20/1	29.1	112.8	16.6	41.5
80/20/1.5	32.2	112.1	13.2	33.0
80/20/2.5	30.7	110.6	9.0	22.5
80/20/3.5	32.5	108.5	8.2	20.5

Fig.4 （A） TGA and （B） DTG curves of CPPC/PBS/ADR blends

Table 3 TGA parameters of CPPC/PBS/ADR blends

CPPC/PBS/ADR	T_d5%/℃	T_d10%/℃	$T_{m a x}^{1}$ /℃	$T_{m a x}^{2}$ /℃
80/20/0	227.1	250.2	268.7	409.1
80/20/0.5	236.0	263.2	274.7	406.7
80/20/1	242.8	265.9	276.9	406.9
80/20/1.5	252.0	261.9	288.3	382.8
80/20/2.5	254.4	266.1	289.7	392.6
80/20/3.5	255.8	269.0	292.9	387.5

Table 3 TGA parameters of CPPC/PBS/ADR blends

CPPC/PBS/ADR	T_d5%/℃	T_d10%/℃	$T_{m a x}^{1}$ /℃	$T_{m a x}^{2}$ /℃
80/20/0	227.1	250.2	268.7	409.1
80/20/0.5	236.0	263.2	274.7	406.7
80/20/1	242.8	265.9	276.9	406.9
80/20/1.5	252.0	261.9	288.3	382.8
80/20/2.5	254.4	266.1	289.7	392.6
80/20/3.5	255.8	269.0	292.9	387.5

Fig.5 Curves of the tanδ against the temperature for CPPC/PBS/ADR blends

Table 4 DMA results of CPPC/PBS/ADR blends

CPPC/PBS/ADR	T_g，CPPC/℃	T_g，PBS/℃	ΔT_g/℃
100/0/0	25.9	/	/
80/20/0	31.4	-27.8	59.2
80/20/1.5	34.5	-26.1	60.6
80/20/3.5	31.9	-17.1	49.0
0/100/0	/	-30.6	/

Fig.6 Variation of （A） storage modulus （G'），（B） loss modulus （G″） and （C） complex viscosity （|η*|） of CPPC/PBS/ADR blends with angular frequency

Fig.7 Stress-strain curves of CPPC/PBS/ADR blends

Table 5 Mechanical properties of CPPC/PBS/ADR blends

CPPC/PBS/ADR	Tensile strength/MPa	Young's modulus/MPa	Elongation at break/%
80/20/0	16.9±0.9	430.3±20.4	381.7±101.4
80/20/0.5	25.0±0.8	551.0±14.1	68.3±22.3
80/20/1	29.9±0.6	661.8±18.3	85.0±7.1
80/20/1.5	34.5±2.3	667.6±17.6	89.8±22.5
80/20/2.5	33.5±1.3	695.2±47.0	98.0±29.6
80/20/3.5	37.7±2.5	723.5±52.0	69.2±20.5

Fig.8 （A） Lap shear strength of CPPC/PBS/ADR blends on stainless steel；（B） Lap shear strength of CPPC/PBS/ADR（80/20/1.5） blends on different substrates

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Preparation and Properties of Chlorinated Poly（Propylene Carbonate）/ Poly（Butylene Succinate） Blends Modified with Epoxy Chain Extender ADR-4468

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